How do I simulate a slower computer performance for testing?

Hello. Long time no see.

I would love to have your inputs on how to simulate a slower computer to test C2 game.

Before I upgraded my computer I had computer that was about 7 years old (but not low budget, it was good for its time, it was gamer computer from 7 years ago) and I spot bugs in the game I am working on. Now having faster computer the bugs are gone. It is not good because I want people with a little slower computers and mobiles be able to play game without the bug. The bug will render the gameplay unplayable.

I am not too keen to pull out things from computer physically for just testing purposes, that has to be said.

I have a feeling it is the cpu because it has to go through lots of array usage and iterations every 0.2 second.

Your computer should be able to simulate a slower computer, I've always used virtual box for this.

https://www.virtualbox.org/

Thanks.

So I understand it correct you need to install OS inside? (hard disk size issue)

yep, but you can choose an OS which takes little hard disk space. For example, debian uses less than 1GB for the base installation.

Never ever used Linux but I guess I can ask my guy for some pointers. haha.