Redline N7 Inconsistency

Today I finally was able to fill my tank for my N7 Milsim. When I began to chrono it, I set it to 80psi shooting .25s, and turned the hop all the way off (just to get an idea of where I should set my rig for its psi). The first few shots were great at 370ish, with a little inconsistency. After 5 or so, it jumped up to 412, then dropped down to 270. I sent several mags of bbs through with no change. I changed the psi to be higher (110) and lower (60) and there were still inconsistent jumps with sporadic bouts of 5ish shots of consistent FPS. I noticed that there seemed to be a little bit of lube coming out of the sides and tip of the nozzle from inside the engine and am wondering if I need to pull it apart and clean it. I called Amped Airsoft and their customer service guy I talked to said I could be pulling the trigger weird? He also couldn’t find a tech to help me so I am waiting on a call back.

Does anyone have any other ideas for me? I am running it on a AMPED Airsoft SLP tank (48/3000) and their SLP regulator.