About INS_acc_fillter question! plz help

I conducted a ground test, and my gasoline engine has a rpm between 2900rpm and 6000rpm And the propeller uses 26x26.

If you look at the current graph, the x (rolling) axis vibration
occurs a lot, so when I switch to Stabilize mode
The ailerons are shaking up and down. However, when the rpm reaches 5500, the aileron shaking symptoms disappear.
this is my log (bin file)

after apply notch filter

not apply notch filter

thank you.