Delete all of your mods, and then uninstall and then reinstall your game. If you do so, everything should go back to normal, and everything will be fine.
The non-Mod version I used installed without freezing, but the Ballad Episodes DID freeze or crash to BSOD based on lacking power supply I believe, the Blue Screen of Death text one can make out referred to my ATI card, but it's well within the limits to play GTA PC on