Added a note about disabling WiFi sleep under "My Device is unresponsive or animations lag!" under "Connection Issues".

FAQ.md

@@ -99,7 +99,7 @@ See [this](https://github.com/Aircoookie/WLED/wiki/Security) page.
 
 You are probably using too many sync interfaces. Please only enable one of Hue sync, MQTT, or Blynk at a time.
 For optimal performance, use two devices and sync them via the UDP notifier.
-Maybe you are also using a very high amount of LEDs. 750 is the recommended maximum.
+Maybe you are also using a very high amount of LEDs. 750 is the recommended maximum. If using E1.31 feature on an ESP32, try "Disabling WiFi Sleep" in the WiFi setup section to reduce lag/stuttering of visual effects.
 
 
 ### I'm having a bootloop! (LEDs turn on every ~5seconds)