Air Venting out of barrel, then bolt clicks back

[Chicago Pb 7]

I have a new problem on my ule rt pro now, I can take a few slow shots then when I try to shoot faster the trigger looses all tension and air can be heard venting out of the barrel then a few seconds later the bolt finally clicks back. I lubed the on/off assembly and no success can some one please help me.

[abunkerer]

lube the powertube carrier oring, and maybe a very light coat of paintball gun grease on the bolt stem. make sure the tank has over 800psi in it.

[ß?µ£ §mµ®ƒ]

sounds like your level 10 is breaking in, if your trigger is still loose after a while, try switching to a stronger spring to reset your bolt

[11_Mile_TMaster]

Oil the on/off while you're in there.