Daitan

Hello everyone, so I have a RTX 2080 aero from msi and during games I encounter weird fan spikes. I tried adjusting fan curve and temperature in msi afterburner, but nothing helped. I attached a picture of the msi monitoring window. So you can see the spikes in the Fan tachometer graph. It ramps up to 5400 RPM, which is higher than the RPM, when I set it on 100% Fan speed. An odd thing that also occurs is that the spikes are not shown in the Fan speed graph... it stays at 80. Also why is the GPU Temperature higher than the Temp Limit I set in Afterburner. I set it to the lowest possible, because it didn't make any difference from my testing. Shouldn't it lower core clock or smth, when the limit is reached?