I have been experiencing minor to Severe FPS drops when accessing certain menus like mail, inventory, skills etc. Reloading the game makes is smooth again. But when you access menus it re-occurs. It's not always the same menu the cause the FPS drop. I have been experiencing this since patch.

Settings tested: lowest to max. All have FPS drops when accessing menus.
Devices I use: Samsung s9+

Please fix this.

I have the same problem here... usually my game on 30 FPS now it's drop bellow 20 FPS after opening mail or game settings...