What type of computer do you use to play The Sims 2? ( I have a Windows 10 and the graphics are agonizing. )
I have a windows 10 pc, with a gtx 970 and an i5, but you can get good graphics for sims 2 on any PC. Your graphics may be bad because the game doesn’t recognise your hardware properly, so use this tool to fix that.
Also, make sure you turn the settings all the way up, and pickup this and this mod for even better lighting+post processing.
If you have weird black boxes under sims, get this mod and, if you want more HQ textures, there are plenty of default replacements out there for terrain, skins, hair etc.