Force updating to WP7.8

Sooo is anyone else having sever lag issues when your phone is connected to wifi while on the charger after the forced 7.8 update?
 
I've also noticed that sometimes when i turn the wifi on it doesn't connect so i have to turn it off and back on again. Other times even when i have the wifi turned on it still uses my data connection so i have to restart the phone to make it connect to wifi
 

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