I have an Acer V3-571G laptop which i sometimes use to play GTA 4 on. It has a quad core Intel i7-3610QM processor, 8GB of RAM and an Nvidia GeForce GT 640M. The laptop is on Windows 8.
My game is set to medium settings all round, with V-Sync off and anti-aliasing on the absolute minimal option.
I use the dedicated Nvidia GeForce 640M graphics card to run GTA with, not the integrated Intel HD 4000 graphics.
Despite having such a high-spec system, i cannot get GTA to run at any more than 15-35FPS.
Temperature is about 65-85 during gameplay. Usually i can get it up to 100 degrees Celsius if i play a more demanding game on this laptop.
I've got loads of car mods installed, and some map mods too, but i don't think these actually make any difference because i tried GTA without them and the framerates were the same. The map mods i've got are Clockwork Mount, Top Gear test track and the World Trade Center. I don't even want the two latter ones, but when i remove them from my game, the framerate gets even worse, weirdly...
I don't understand it... I've seen much worser computers than mine, getting way better FPS in this game.
Someone help, please!