I have got no clue on this but from last one week my touch screen mobile is working very slow. I had checked my mobile antivirus and that is updated and I had also performed a complete phone scan, but no virus found. I don’t want to restore my mobile phone as my all installed antivirus and data will be lost. So I want to ask this from you guys, what is the reason due to which my mobile phone OS is too slow? And what I need to do?