If you don't want interiors and terrains removed then deal with it, something GOOD is going to replace it, shadows and shaders, if you don't have a good graphics card, it's never too late to buy another graphics card or even a better computer, doesn't have to be Operating System better.
Tips for gaining some cash for that new graphics card:
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Do some chores around the house and get some cash out of it.
Get a TEMP job, they'll give you some money.
Look around the streets, you'll find some coins or even dollar bills there