This might have been better off posted on the Tech Discussions board here; maybe one of the kind moderators will move it for us.
Many of us on suitable hardware play all or almost all of the 11 EPs, there is no reason not to if our systems can handle the load. If you are relying on the Patch 1.69 Launcher's warning about "too many" EPs, we all got that if playing an Origin controlled game and it can be ignored again if on suitable hardware.
On the NRaas mod script errors, we would be happy to help interpret those at NRaas if you provide them to us over there. It is a huge part of what we are there for.
Ordinarily I would ask for a dxdiag so we can see the exact specs of the system you are working with -- this is assuming Windows, if you are on a Mac then that requires a different conversation. But it sounds to me like your system is experiencing mechanical problems it did not have before that don't really have anything to do with the game. Those really need to be checked out first. If its fans/cooling system or power supply are failing, if it's suffering from some sort of hard drive or graphics card damage, if its internal components are clogged with dust/hair and it needs to be professionally cleaned, or if it's simply failing due to old age, then there is nothing that can be done with the game to make it run better. The system would really need to be checked out and repaired or replaced first.
