ASPIRE ES1-523 old games fps drop

Hi!

I just baught an ASPIRE ES1-523 and I do realize it's not meant for games. But I'm trying to play old school 2d games like Jagged Alliance 2, Arcanum etc... I've tried updating everything but it still so stuttering/fps-dropping/lagging that the games are totally unplayable. Could this be fixed?

Thanks on forehand!