Blender 2.7 flickering on screen/using Blender 2.9 for poses

Hey guys, I'm trying to get into making poses and it required for me to download Blender 2.70 instead of the most recent version. I've installed it and the screen flickers/blinks? I've looked up this issue online and it's apparently because I need to update my drivers but I checked and my drivers are up to date. I would just use the recent version but 1) I'm unsure if it's compatible with Sims4Studio and 2) the rig doesn't have any human features, it's just grey and shiny.

Any tips or advice would be very appreciated!