Well, look at the game's wiki page, and if there's any speedup options you can enable that don't contradict the wiki page, enable them. That's all I can say, since your CPU is so weak.
If nothing is fixed, you will need to upgrade your CPU or nothing will be faster.
If nothing is fixed, you will need to upgrade your CPU or nothing will be faster.
in a perfect world we would all be piles of sand with no ability to form coherent bodies of body