JAMESNYPD

dam lol that would be your problem and i bet your gpu is hot also what heatsink do you have if its the stock may want to look at getting either a aio liquid cooler or better air cooler 

41c for gpu or cpu? also that on load when in a game or idle on the desktop the temp?
 

gpu you want under 60c and i say for cpu under 70c also should verify game data to see that you don't have any missing/ corrupted files  

What is your gpu and cpu temps at you maybe running to hot and its thermal throttling also try and play gta normal no plugins or rage hook/mods and see if you still have low fps also you might just have the settings way to high can't fully max gta on a gtx970 try turning down some settings also if your gpu driver are outdated go and update them  and use a program called ddu to first fully remove drivers then install new nvidia drivers 

lol policewomen we won't have to wait that long els is just around the corner we should be seeing it soon(soon lol) within the next few weeks can't wait this is what lspdfr and the gta community been waiting for can't wait to see what great cars will be made with els just like to thank all of the els team and testers for their hard work now
let the hype train/countdown begin  choo choo 
 

yea I see that now you can try other traffic/ped mods on gta5-mods.com they have that should work or just do what Darkmyre said to do and edit the popcycle.dat

What you think gta Lighting system is better how it's so fake and generic looking the lights flash so slow and the bloom looks fake you have no control over different flash patterns that look like real life police flash patterns and gta lighting system is limited in what modders can do with their cars and light setup and the only problem with all the cars being mostly els cars was back in gta iv when the game was unstable and didn't like mods and some people couldn't have els that would crash their game but with gta v it's a lot more stable then what gta iv was and in gta iv when els 8 came out it made gta iv alot more stable so i know the els team is making gta v els way better that's it is more stable and more features than gta iv els had 

k try this on your motherboard there should be a button that says memok hold and press that till you see the led start to blink than let it do its thing it might take a bit but you should than be able to boot also are you use all new ram u cant really mix and match diff ram hope this helps