Within like 2 minutes of playing once I leave the bedroom and bum into her my game sometimes crashes their then when I go down stairs to talk to the landlady I crash does anyone know how to fix this?

This game has promise Imanaged to get Lilly's route up to Cass'es sex scene where even using texture reduction and texture flushing I spent 5 hours trying to complete cass'es scene the game lag was very slow it took 5 to 10 minutesfor the animation to play just before the ending the game crashed to my home screen on my android phone