diff --git a/aredis/client.py b/aredis/client.py
index 91973db5..2b6a8efc 100644
--- a/aredis/client.py
+++ b/aredis/client.py
@@ -400,7 +400,7 @@ async def execute_command(self, *args, **kwargs):
                     # MOVED
                     node = self.connection_pool.get_master_node_by_slot(slot)
                 else:
-                    node = self.connection_pool.get_node_by_slot(slot)
+                    node = self.connection_pool.get_node_by_slot(slot, command)
                 r = self.connection_pool.get_connection_by_node(node)
 
             try:
diff --git a/aredis/pool.py b/aredis/pool.py
index 1fbb2cc7..e56a57b0 100644
--- a/aredis/pool.py
+++ b/aredis/pool.py
@@ -494,7 +494,8 @@ def get_connection_by_node(self, node):
     def get_master_node_by_slot(self, slot):
         return self.nodes.slots[slot][0]
 
-    def get_node_by_slot(self, slot):
-        if self.readonly:
+    def get_node_by_slot(self, slot, command=None):
+        #prevent movederr exception, optimized read lookup speed
+        if self.readonly and command in ["GET", "GETBIT", "HGETALL", "HMGET", "HLEN", "LLEN", "LINDEX", "MGET"]:
             return random.choice(self.nodes.slots[slot])
         return self.get_master_node_by_slot(slot)