Alright installed a new car and that worked aparently, and I also runs better when I first start my computer.
And thats probaly the the last of my problems,finally.
My Computer can run gta 5 60 fps on high settings without mods and it only really lags when I am in the city or driving fast so I am going to turn the traffic density down a little and see if that helps.
Whenever I play as a police officer and especially when I am driving at high speeds The game has a ton of lag spikes, Is there a mod or setting that hopefully fixes this?