Run ToV and try to disable the music, save and run EF. As the profile config file is shared EF should start without music as well.I don't think it has to do with the music though .Btw, which are your PC specs?
I had some issues similar to this. For me, the entire game seems to slow down. There is lag in the mouse, the moving background freezes up and jumps forward to catch up, even the sound is weird. Basically it seems like the game slows down until it finally freezes up. It all happens in under a minute, so if I see it starting I have to exit quickly, or reboot my system. It goes away after a bit though. I have found that not playing for a few days will fix it (no clue why).