Hi,
I found a solution (what appears to be) to this FPS cap issue.
That is to change the polling rate of the pedal to 1000Hz using hidusbf.
Link:https://github.com/LordOfMice/hidusbf
Please research the detailed method yourself. This software is used to change the polling rate of gamepads, so there should be information on how to use it.
Also, I have not yet been able to verify any negative effects on gameplay with this solution. At least in my environment, I have confirmed that 84fps has increased to around 144fps.
Finally, I am not an English speaker and this is a post created using google translate. I apologize for the unnatural English expression.
I hope your fps cap improves.
