I’m sorry to see that happening, the game isn’t really optimized, i did the bare minimum for most people to be able to run the game without too much issues.
Can you record a video of it? Thanks. :)
Well, you could always try to run the game with this command and see what happens:
THEg.exe --rendering-driver opengl3
Keep in mind that the game isn’t made for OpenGL rendering. It will look worse. But at least it could let you set all the graphics settings to low / disabled to try to launch the game normally to see if it still happens.