The moderators here don't care for optimizers. You are right that it may be too old for today's games.
Try this. Run games that came out when that machine was made.
I/m running asus lapy xp pro 512 ram 35 gig h/d but always have to gefrag or clean up every second day i/ve also run glary utilities is there any other free programes to use or is it just too old i don/t use it that much as its to slow