Profile mode in XCode runs faster than Run mode?

Hi all,

I'm confused as to why would the Profile mode in XCode builds the project and runs faster than the Run mode in XCode? Is there a way to set Run mode to be as fast as Profile mode (through settings in XCode)? We're having an issue where apparently, drawing multiple sprites on screen in Run mode is pretty slow, but on Profile mode it is alright. Any help would be appreciated =)