How to fix bad Wi-Fi after updating ios 7?

I recently updated my iphone to ios 7 and the Wi-Fi became SUPER slow. Do you guys know any solutions possible?
(its not the Wi-Fi itself that is slow because it is really fast on my laptop)

Apple says it's working on fix for iOS 7 lockscreen bypass flaw… And the camera, as well as frequently-used settings such as Wi-Fi, Bluetooth and Airplane… "We're aware of this issue, and will deliver a fix in a future software update."… Adultery falls behind bad behaviour as leading grounds for divorce.

http://www.theguardian.com/...ypass-flaw

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