Delete your existing directory and extract this into it its the newest version with hardware accel back on. I was going crazy i actually installed windows again cause thought was my computer. When i made a platter of like 4 orbiters or 30 cable chain links i could not even get 1 fps and then i couldnt even type while it was open and i running a 5950x with 64gb ram right now so i was really at a loss. But try the gcode viewer or slice preview then do this and try again .
you will not lose your profiles as they are stored in the USERS/AppData/roaming then i think superslicer ALPHA folder but anyway you get the point