how to install ota updates on rooted galaxy s2 plus

[Amir Sherif]

I been facing a big problem since I bought this phone
I rushed to rooT before I even installed the latest ota and installed a custom recovery but I have been facing huge slowdown in games that should run butter smooth on my phone such as dead trigger and my friend with same mobile phone and both on stock jelly bean 4.2.2 rooted can run it butter smooth the only difference between 2 devices is that he installed the ota updates before rooting so could that be the problem?and if so is the there a way to install ota updates while rooted and if there is any custom rom without problems that works on my mobile phone that fasts everything up
Please I need help

 

[mobilecrackers]

you will not get the ota update after rooting. So you need to use odin to flash