Document issues with setting max_fps to 0
Document issues with setting max_fps to 0

closes #3726
andnovar/kivy,KeyWeeUsr/kivy,kived/kivy,jkankiewicz/kivy,jegger/kivy,kivy/kivy,vitorio/kivy,jkankiewicz/kivy,jkankiewicz/kivy,Cheaterman/kivy,kived/kivy,matham/kivy,akshayaurora/kivy,CuriousLearner/kivy,tony/kivy,bionoid/kivy,el-ethan/kivy,matham/kivy,kivy/kivy,rnixx/kivy,rafalo1333/kivy,KeyWeeUsr/kivy,autosportlabs/kivy,aron-bordin/kivy,matham/kivy,el-ethan/kivy,CuriousLearner/kivy,cbenhagen/kivy,kivy/kivy,andnovar/kivy,LogicalDash/kivy,janssen/kivy,KeyWeeUsr/kivy,arlowhite/kivy,kived/kivy,autosportlabs/kivy,Cheaterman/kivy,arlowhite/kivy,janssen/kivy,LogicalDash/kivy,rafalo1333/kivy,tony/kivy,manthansharma/kivy,darkopevec/kivy,aron-bordin/kivy,janssen/kivy,manthansharma/kivy,jkankiewicz/kivy,rnixx/kivy,janssen/kivy,matham/kivy,KeyWeeUsr/kivy,rnixx/kivy,inclement/kivy,Cheaterman/kivy,LogicalDash/kivy,jegger/kivy,inclement/kivy,bionoid/kivy,jegger/kivy,autosportlabs/kivy,arlowhite/kivy,darkopevec/kivy,inclement/kivy,CuriousLearner/kivy,vitorio/kivy,bionoid/kivy,bionoid/kivy,akshayaurora/kivy,rafalo1333/kivy,manthansharma/kivy,cbenhagen/kivy,darkopevec/kivy,tony/kivy,jegger/kivy,el-ethan/kivy,Cheaterman/kivy,aron-bordin/kivy,cbenhagen/kivy,akshayaurora/kivy,vitorio/kivy,darkopevec/kivy,manthansharma/kivy,LogicalDash/kivy,andnovar/kivy,aron-bordin/kivy