Solidworks is VERY slow

Hi, I have a problem with Solidworks 2016. I have been using it for some months now, and I ran the program very well. For the last two days, though, the program is VERY slow, even just a line drawing takes a few seconds, and so for each command. I tried to fully uninstall it (erasing even the key register) and reinstall it; to dedicate the Nvidia Card at high performance, to erase the cache, but nothing ... if anyone can help me I would be very grateful. Thank you

SolidworksGeneral