RedDeadRedemption2B

The mod works OK,but after 15-20 min it causes my game to crash,im using the light version and havent changed anything except the number of npc's it effects,which i put to 65,so how can i make it not crash? My specs are good enough to run the game on ps4 settings with straight 60fps and still have a gig of VRAM left,so i dont know why it crashes after a bit of time.The only other mods i have are the bounty expansion mod and the duels mod.