So one thing I've noticed over the many years I've been a computer geek is that for some odd, God forsaken reason, PSU manufacturers must deliberately want to annoy us. Perhaps even freak us the eff out.

I just bought a new PSU (Power supply) for my computer and it has a red switch on the back of it that goes between 115V and 230V. It's on 115V right now so if I switch it to 230V will it give my computer better performance?