Well yesterday i update my dads phone to the 5.0 release, and when he goes to use the browser, it wont let him zoom in and the internet speed really slowed down.
Wait, what new 5 first? I have run several versions of 5.0 and have been able to zoom in and out and picked up browser speed with different OS. Let us know which carrier and which 5.0 version you're running so we can get you some help.