Some people gave this advise in settings in FS 7.1.9 that makes things better: if you want, you can try ..
Go to Advanced menu → Debug Settings. (To enable the Advanced menu, go to World menu → Show More → and tick “Advanced Menu.”)
In Debug Settings, switch RenderGLMultiThreadedTextures to “TRUE”.
Enable VRAM Detection
Go to Help menu > About Firestorm. Find the lines that starts with “Graphics Card Memory.” (This is also called “VRAM.”)
Note the amount of VRAM.
Go to Preferences → Graphics → Hardware Settings. Find “Override VRAM Detection,” tick that box.
Then set the slider below as follows:
If you have less than 8 GB VRAM, divide that number by 2 and set the slider to the result.
If you have 8 GB VRAM or *more*, set the slider to 4.
Note: You may want to experiment with higher numbers, such as 3/4 of your total VRAM instead of 1/2.
Note also: If you have enabled VRAM override, and you switch back and forth between a 6.x.x viewer and 7.1.9, the VRAM override will be reset to 0 and you will need to reset it or turn it off.
For me , I wait until they repaired all bugs and use the previous one

Cheers