I got into the train sim back when it wasn't brand new but not ancient and there was no such thing as open rails. I got so frustrated with the crashes I completely ditched it and stuck with only my flight sim. Well my flight sim rig took a crap and rather than restart that from scratch I got a friend who can clone the HD but that has turned into a waiting game so in the meantime i had this old dell computer sitting around and figured I'll use this till i get my other up and running and I'll give the train sim another try. But now when I came back to the forums here i saw everyone talking about this thing called open rails. Looked promising but I held off. Once again Train Sims crashes and errors drove me nuts so I gave OR a try. I'll admit it. I tried it as a drop in replacement. 8-9 FPS. I said no way. I went back to MSTS. After seeing more and more about it here after a while I decided to give it another try. Started tweaking some settings and got the FPS up to bout 25. Not good but playable. 8-9 FPS was not. After getting the hang of it and really starting to enjoy it I decided to upgrade a couple things on this "temporary" computer so i upgraded from a Core 2 Duo to a quad core and ditched the 8400GS card for a GT1030 and even threw in a sound card and boom! I saw over 200 FPS. I have Vertical sync on now to keep the FPS at 60 and keep the card's temps down. Old computer so total investment was around $120. I had an issue that almost made be go back to MSTS but I think i'd rather give it up completely instead of going back. But it didn't get that way without a little work on my part and some help from some of the folks here. You may not have to replace any hardware. All it might take is a little tweaking and experimenting in the settings to optimize it for your hardware.