We have just supported Germany server in Yeelight application, you can have a try with the latest version, if you don't get it from app store, please have a wait.
If you live in Europe and feel latency of current server, you have have a try to move the lamps to Germany server. Please remember that you need reset and reconnect the lamp again.
Germany server supports IFTTT/Google Home/Alexa now.
Android: Version 3.1.19