Windows 7 Slow Performance After System Repair

Recently, my computer crashed and kept receiving the BSOD Unmountable Boot Volumr error. All that I could do was do a System Repair, which fixed the BSOD error, but now, when I start windows normally, everything is really slow. Trying to open a program either takes forever or simply doesn't open, but it reamins in the task manager. While in safe mode, however, everything works as it normally would. I don't know what could have caused this to happen, and help would be greatly appreciated.

Thank you so much! I'm just glad I didn't lose the game I have been working on!