Please advise me how update my computer

Hello there. I recently bought GT 1030 on my PC with i3-4150 Haswell. It shows better results, than integrated Intel HD 4400, but the emulator is still slow down and loads processor on 100%. And I have a question.

1. I can buy Xeon e3-1230 v3 from China for about 55-60$ (this is a cheap variant, but I doubt it will give a real performance boost in the emulator, since the processor may not support all the necessary instructions

2. I can fully upgrade my platform on modern processor like Ryzen or Intel 10 or 11 gen, but this is a motherboard for 50$ for cheapest variant, 100-120$ for Ryzen 3/i3 and RAM for 60$ for cheapest complect of two planks for 4GB (its so expensive)

3. I can find methods for optimize emulator/operating system/myself (it's free)

I need your help, members of this forum

Have you look at the second hand market ?