your system is outdated but not that bad, you dont have enough memmory or video card to run sh5 the way it should. your processor is ok but the ram is not enough. the required specs video games give you are always too low.
upgrading to more ram will help so max out what will work with your motherboard and ram is dirt cheap now so swapping yours out for a better speed and maxing out your boards ram capacity (which is most likely 6gb) wont cost much.
your main problem is the video card is way too outdated, a 9500 is just a repackaged 8500 because they never changed anything but the name for it so i suggest you swap it out for a gtx550 video card with 1gb onboard ram
found here:
http://www.newegg.com/Product/Produc...CE&Pagesize=20
most are $70-$90 depending on the rebate so i would definately get one if i were you (i always stick with EVGA cards myself)
maxing your system ram and a new video card will make your computer feel brand new again and can be done for about $150