I have an iphone 5s on 7.1.2 jailbreak. Recently I noticed that there is a signifcant amount of lag when the screen turns on. It varies but sometimes it takes 2-3 seconds for the screen to turn on when i hit the power or home button. I havent really installed any new tweaks but are there any that could potentially cause a problem like this? I've never had this problem previously and i only just noticed it today