This looks good for me. You Temperature is going down, you see this because your negative pressure in rising.
That's why you have a negative leakage rate.
All what you see in this charts are noise from the temperature changes. The charts are auto scaled to the current visible range.
oh, my temps are absolutely awesome. i seem to have broken the laws of Thermodynamics and my GPU average is cooler than my water temp.
Note, there's not a lot of load on in this screenshot. But while gaming, the max CPU I've seen is a momentary spike to ~54C then quickly back to well under 50C. I'm currently running my system at 75% pump speed and 50% fan speed. I'm still figuring out how to drive Aquasuite and will set some fan ramping once I get my head around it.
FYI: 2x 480mm Radiators and 11 fans total (10x 120mm and 1x 140mm)