All of UE my projects are slowing down as soon as open any window (e.g material, blueprint). And as soon as I close the window editor starts working fine. I tried:

  • on version 4.27, 4.26
  • Created blank project but same issue occurred.
My setup:
- windows 11 - engine is installed on SSD - Nvidia GeForce RTX 2070
I don't know what could be affecting the performance, please help.
  • \$\begingroup\$ I solved it. Apparently one of my display plugged in port that is not supported by the graphics card. That's why extra window shows up in the monitor whole editor became slow. \$\endgroup\$
    – GEO
    Oct 20, 2022 at 1:45


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