Bobojojo :
vrumor :
Where did you download GTA V from?
steam
I have windows vista and l dont know how to open task manager or check how much ram l am using.
I know exactly what your problem is. I have similar issues on 4GB RAM. Don't worry, its not the game, and for you, it can be fixed.
1. Clear all background apps. Before opening the game, open task manager and close everything thats not a system process. Don't close Windows explorer though.
2. Note how much % of RAM is being used when all apps are cleared and reply to this message with the %.
3. Tell me your OS and Hard Drive RPM. If its a SSD, nevermind.
4. Make sure that your GTA V version is updated with latest patches.
5. DON'T USE MODS, TRAINERS, ETC. They will only take up more memory.