Performance issues are due to people having onboard/integrated graphics cards. Those cards are actually a portion of the processor devoted to processing graphics, this significantly reduces the amount of processing power avaliable. These processors are made for the everyday computer user (using facebook, checking emails, browsing youtube,etc.) and not high definition gaming. The reason you thing the processor is the big issue is that AMD's integrated graphics use a AMD Radeon integrated card which draws power from the processor and Intel has their own type called Intel HD Graphics (NAME IS MISLEADING, can in no way run HD graphics.). Laptops and most moderately priced desktops have integrated graphics. What people need to play this game and this mod is a dedicated graphics card which is basically a second processor that processes graphics. Only higher end desktops and very high end laptops come with these installed. To upgrade the comuter its as simple as getting a graphics card upgrade to their computer from their local computer shop. I dont recommend you making a SD version because people with lower end systems will still experience crashes and FPS lag due to their systems not being up to par.
expect I seen performance issue on my system. I have none of the above. I have 2GB of dedicated video ram. The game and the mod are install on SSD drive. Yet this mod takes longer to load then any other mod. include winterberg.
Until i turn all the EM4 graphics setting to load. I would crash to desktop with in 5 minutes. Now i cna play for a bit as long as I do not enter a building. I be trying the SD version today.