Wifi Super Slow!?

[Jack]

Hey so I have a Gaming PC and a Xbox 360. I love making youtube videos but here's the problem, I can't! My Wifi to my PC and Xbox is so slow, I can barely play online games... I was wondering if anyone knew how to speed up wifi connection for Gaming? Currently I run wifi connections off a 2 Wire Bell Router. (It's an older one).

I've went on the Bell Canada website to see what our subscription was and it looked fine, but on games on my PC I run speeds of 150-600 ms and on my Xbox 360 I am always "one barring". But as soon as it passes like 11:00 pm it runs very well. Any suggestions? Please Help!