Heavy slowdown SDXL generation on RTX 4050 Laptop with WebUI 1.8.0 compare to WebUI 1.7.0

[RuslanKuz]

In general, I have a sad situation with the speed of SDXL generation with version 1.8 on a laptop with RTX 4050 6 GB. Generation 1024x1024 - 1:30-1:40 min with 30 steps. On version 1.7 it was 40-60 sec. This is with --xformers and --medvram-sdxl keys.
At the same time on a home PC with RTX 3080 10 GB I didn't notice any special difference, maybe a little slower.
It turns out that optimization for small video memory was not brought in for sure. Even more likely the opposite. I've installed clean setup v.1.7.0 and v.1.8.0 to test.
Tested the same generation, ran several times. As a result, the best time:

• Version 1.7.0 - 43.6 sec.
• Version 1.8.0 - 1.35 sec.
• Model - JuggernautXL 9.
  That's quite a downgrade.
  I noticed on monitoring that on 1.8 it loads video less. Probably because the memory is more clogged

Who else has a 6-8 Gb video cards does SDXL began also to work slower with the new version 1.8?

[Rey-94]

me too, how do i go back to 1.7 version ?

[Rey-94]

update : removed the venv folder and reinstalled it. Now it works as intended. 1.8 is faster than 1.7

[RuslanKuz]

What videocard do you have and witch keys you put in command line arguments in webui-user.bat?