Extreme Lag in unreal Engine

Hi, I am having issue with my unreal engine project. I was working on the matrix awakens big city Map and everything was fine till yesterday night, but since today morning it has been extremely laggy like 1 frame per second. I can barely work on it. I tried restarting, upgraded my graphics card, even cleared out some of the hard disk space just incase. Still no luck.

My device is very high end.

  • Asus Strix Scar 16 2024
  • NVIDIA Geforce RTX 4080
  • 32 GB ram
  • intel core i9

It shouldn’t be having any issues, but it does. Even when I put the scalability setting to Low, it is facing the same issue as cinematic, literally no change in performance. And when I put the setting to Auto, the system automatically chooses ‘Epic’ as the most suitable.


As you can see in the above screenshot, unreal engine is using 11GB ram, which is way less than what i have available. I also checked to see if the rest of the RAM is on reserved or not, but only 3GB of ram is on reserved, and 30 GB Ram is available to use.

I don’t understand what the problem is. Somebody if you know the solution Please do help.