diff --git a/src/danog/MadelineProto/Async/AsyncParameters.php b/src/danog/MadelineProto/Async/AsyncParameters.php
index 62264819..05e8c703 100644
--- a/src/danog/MadelineProto/Async/AsyncParameters.php
+++ b/src/danog/MadelineProto/Async/AsyncParameters.php
@@ -18,8 +18,6 @@
 
 namespace danog\MadelineProto\Async;
 
-use Amp\Success;
-
 /**
  * Async parameters class.
  *
@@ -53,17 +51,9 @@ class AsyncParameters extends Parameters
         return $this->refetchable;
     }
 
-    public function getParameters(): \Generator
+    public function getParameters()
     {
         $callable = $this->callable;
-        $params = $callable();
-
-        if ($params instanceof \Generator) {
-            $params = yield coroutine($params);
-        } else {
-            $params = yield new Success($params);
-        }
-
-        return $params;
+        return yield $callable();
     }
 }
diff --git a/src/danog/MadelineProto/Async/Parameters.php b/src/danog/MadelineProto/Async/Parameters.php
index 400792a2..f708fb9f 100644
--- a/src/danog/MadelineProto/Async/Parameters.php
+++ b/src/danog/MadelineProto/Async/Parameters.php
@@ -19,7 +19,6 @@
 namespace danog\MadelineProto\Async;
 
 use Amp\Promise;
-use function Amp\call;
 
 /**
  * Parameters module.
@@ -37,23 +36,13 @@ abstract class Parameters
      *
      * @return Promise
      */
-    public function fetchParameters(): Promise
-    {
-        return call([$this, 'fetchParametersAsync']);
-    }
-
-    /**
-     * Fetch parameters asynchronously.
-     *
-     * @return \Generator
-     */
-    public function fetchParametersAsync(): \Generator
+    public function fetchParameters()
     {
         $refetchable = $this->isRefetchable();
         if ($this->params && !$refetchable) {
             return $this->params;
         }
-        $params = yield call([$this, 'getParameters']);
+        $params = yield $this->getParameters();
 
         if (!$refetchable) {
             $this->params = $params;
@@ -74,5 +63,5 @@ abstract class Parameters
      *
      * @return \Generator
      */
-    abstract public function getParameters(): \Generator;
+    abstract public function getParameters();
 }
diff --git a/src/danog/MadelineProto/Loop/Connection/CheckLoop.php b/src/danog/MadelineProto/Loop/Connection/CheckLoop.php
index 1c9e3df5..6bfa6036 100644
--- a/src/danog/MadelineProto/Loop/Connection/CheckLoop.php
+++ b/src/danog/MadelineProto/Loop/Connection/CheckLoop.php
@@ -21,7 +21,6 @@ namespace danog\MadelineProto\Loop\Connection;
 use Amp\Deferred;
 use danog\MadelineProto\Logger;
 use danog\MadelineProto\Loop\Impl\ResumableSignalLoop;
-use function Amp\call;
 
 /**
  * RPC call status check loop.
@@ -30,7 +29,7 @@ use function Amp\call;
  */
 class CheckLoop extends ResumableSignalLoop
 {
-    public function loop(): \Generator
+    public function loop()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
diff --git a/src/danog/MadelineProto/Loop/Connection/HttpWaitLoop.php b/src/danog/MadelineProto/Loop/Connection/HttpWaitLoop.php
index ae3b151f..b0bdb504 100644
--- a/src/danog/MadelineProto/Loop/Connection/HttpWaitLoop.php
+++ b/src/danog/MadelineProto/Loop/Connection/HttpWaitLoop.php
@@ -31,7 +31,7 @@ use danog\MadelineProto\Stream\MTProtoTransport\HttpStream;
  */
 class HttpWaitLoop extends ResumableSignalLoop
 {
-    public function loop(): \Generator
+    public function loop()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
diff --git a/src/danog/MadelineProto/Loop/Connection/ReadLoop.php b/src/danog/MadelineProto/Loop/Connection/ReadLoop.php
index b613aebf..c9aaefa5 100644
--- a/src/danog/MadelineProto/Loop/Connection/ReadLoop.php
+++ b/src/danog/MadelineProto/Loop/Connection/ReadLoop.php
@@ -26,7 +26,6 @@ use danog\MadelineProto\Loop\Impl\SignalLoop;
 use danog\MadelineProto\MTProtoTools\Crypt;
 use danog\MadelineProto\NothingInTheSocketException;
 use danog\MadelineProto\Tools;
-use function Amp\call;
 
 /**
  * Socket read loop.
@@ -38,7 +37,7 @@ class ReadLoop extends SignalLoop
     use Tools;
     use Crypt;
 
-    public function loop(): \Generator
+    public function loop()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
@@ -46,7 +45,7 @@ class ReadLoop extends SignalLoop
 
         $this->startedLoop();
         $API->logger->logger("Entered read loop in DC {$datacenter}", Logger::ULTRA_VERBOSE);
-        $timeout = $API->settings['connection_settings'][isset($API->settings['connection_settings'][$datacenter]) ? $datacenter : 'all']['timeout'];
+        //$timeout = $API->settings['connection_settings'][isset($API->settings['connection_settings'][$datacenter]) ? $datacenter : 'all']['timeout'];
 
         while (true) {
             try {
@@ -110,12 +109,7 @@ class ReadLoop extends SignalLoop
         }
     }
 
-    public function readMessage(): Promise
-    {
-        return call([$this, 'readMessageAsync']);
-    }
-
-    public function readMessageAsync(): \Generator
+    public function readMessage()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
diff --git a/src/danog/MadelineProto/Loop/Connection/UpdateLoop.php b/src/danog/MadelineProto/Loop/Connection/UpdateLoop.php
index 00904a7d..31b5fcdb 100644
--- a/src/danog/MadelineProto/Loop/Connection/UpdateLoop.php
+++ b/src/danog/MadelineProto/Loop/Connection/UpdateLoop.php
@@ -31,7 +31,7 @@ class UpdateLoop extends ResumableSignalLoop
 {
     use \danog\MadelineProto\Tools;
 
-    public function loop(): \Generator
+    public function loop()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
@@ -57,7 +57,7 @@ class UpdateLoop extends ResumableSignalLoop
                 }
             }
             if (time() - $API->last_getdifference > $timeout) {
-                if (!yield $this->call($API->get_updates_difference_async())) {
+                if (!yield $API->get_updates_difference_async()) {
                     return false;
                 }
             }
diff --git a/src/danog/MadelineProto/Loop/Connection/WriteLoop.php b/src/danog/MadelineProto/Loop/Connection/WriteLoop.php
index 5deb7b52..acb9f822 100644
--- a/src/danog/MadelineProto/Loop/Connection/WriteLoop.php
+++ b/src/danog/MadelineProto/Loop/Connection/WriteLoop.php
@@ -72,7 +72,7 @@ class WriteLoop extends ResumableSignalLoop
         }
     }
 
-    public function unencryptedWriteLoopAsync(): \Generator
+    public function unencryptedWriteLoopAsync()
     {
         $API = $this->API;
         $datacenter = $this->datacenter;
diff --git a/src/danog/MadelineProto/Loop/Impl/ResumableSignalLoop.php b/src/danog/MadelineProto/Loop/Impl/ResumableSignalLoop.php
index 9a54369b..05d1b344 100644
--- a/src/danog/MadelineProto/Loop/Impl/ResumableSignalLoop.php
+++ b/src/danog/MadelineProto/Loop/Impl/ResumableSignalLoop.php
@@ -64,9 +64,10 @@ abstract class ResumableSignalLoop extends SignalLoop implements ResumableLoopIn
                 return;
             }
         }
+        /*
         if ($expected) {
-            //var_dump("=======", "resume $watcherId ".get_class($this)." DC {$this->datacenter} diff ".(microtime(true) - $expected).": expected $expected, actual ".microtime(true));
-        }
+        //var_dump("=======", "resume $watcherId ".get_class($this)." DC {$this->datacenter} diff ".(microtime(true) - $expected).": expected $expected, actual ".microtime(true));
+        }*/
         if ($this->resume) {
             $resume = $this->resume;
             $this->resume = null;
diff --git a/src/danog/MadelineProto/Loop/LoopInterface.php b/src/danog/MadelineProto/Loop/LoopInterface.php
index 18d6b531..d15b9384 100644
--- a/src/danog/MadelineProto/Loop/LoopInterface.php
+++ b/src/danog/MadelineProto/Loop/LoopInterface.php
@@ -37,5 +37,5 @@ interface LoopInterface
      *
      * @return void
      */
-    public function loop(): \Generator;
+    public function loop();
 }
diff --git a/src/danog/MadelineProto/MTProtoTools/ReferenceDatabase.php b/src/danog/MadelineProto/MTProtoTools/ReferenceDatabase.php
index 5b6aa5ad..bf56a97a 100644
--- a/src/danog/MadelineProto/MTProtoTools/ReferenceDatabase.php
+++ b/src/danog/MadelineProto/MTProtoTools/ReferenceDatabase.php
@@ -25,7 +25,6 @@ use Amp\Success;
 use danog\MadelineProto\Exception;
 use danog\MadelineProto\TL\TLCallback;
 use danog\MadelineProto\Tools;
-use function Amp\call;
 
 /**
  * Manages upload and download of files.
@@ -460,19 +459,14 @@ class ReferenceDatabase implements TLCallback
         return $this->refreshReferenceInternal($this->serializeLocation($locationType, $location));
     }
 
-    public function refreshReferenceInternal(string $location): Promise
+    public function refreshReferenceInternal(string $location)
     {
         if (isset($this->refreshed[$location])) {
             $this->API->logger->logger('Reference already refreshed!', \danog\MadelineProto\Logger::VERBOSE);
 
-            return new Success($this->db[$location]['reference']);
+            return $this->db[$location]['reference'];
         }
 
-        return call([$this, 'refreshReferenceInternalGenerator'], $location);
-    }
-
-    public function refreshReferenceInternalGenerator(string $location): \Generator
-    {
         ksort($this->db[$location]['origins']);
         $count = 0;
 
@@ -497,7 +491,6 @@ class ReferenceDatabase implements TLCallback
                         $this->API->full_chats[$origin['peer']]['last_update'] = 0;
                     }
                     $this->API->get_full_info($origin['peer']);
-                    yield new Success(0);
                     break;
                 // Peer (default photo ID)
                 case self::USER_PHOTO_ORIGIN:
@@ -546,14 +539,14 @@ class ReferenceDatabase implements TLCallback
         return $deferred->promise();
     }
 
-    public function getReference(int $locationType, array $location): Promise
+    public function getReference(int $locationType, array $location)
     {
         $locationString = $this->serializeLocation($locationType, $location);
         if (!isset($this->db[$locationString]['reference'])) {
             if (isset($location['file_reference'])) {
                 $this->API->logger->logger("Using outdated file reference for location of type $locationType object {$location['_']}", \danog\MadelineProto\Logger::ULTRA_VERBOSE);
 
-                return new Success($location['file_reference']);
+                return $location['file_reference'];
             }
 
             throw new \danog\MadelineProto\Exception("Could not find file reference for location of type $locationType object {$location['_']}");
@@ -564,7 +557,7 @@ class ReferenceDatabase implements TLCallback
             return $this->refreshReferenceInternal($locationString);
         }
 
-        return new Success($this->db[$locationString]['reference']);
+        return $this->db[$locationString]['reference'];
     }
 
     private function serializeLocation(int $locationType, array $location)