Ok, When my PS3 is connected to the internet,

Ok, When my PS3 is connected to the internet, Playing a online game ( Call of duty black ops 2, to be exact )

The second my Macbook connects to my WIFI my download speed drops from 20Mb to 2Mb~.

And when i turn it off it goes good again.

When we had the Windows Laptop we had no problems.

No problems when im using my ipad or iphone my connection stays good.

Is it a safari issue? I'll try downloading chrome and see if i get the same issue.

P.S. No other apps are open on the Mac