Joycons motion controls not working properly

[blababa]

Hi, I've been trying to get my joycons working with skyward sword using betterjoy. I think I've got everything set up correctly however the motion controls are very hard to use and when I look in the configuration I see that the accelerometer values are high despite the controllers sitting still on my desk [see attachment for screenshot]. I connected my joycons to my switch and verified that the motion controls were working fine there. I am using an asus bt500 bluetooth adapter on my desktop pc. I also tried playing with the pro controller on my pc and the motion controls seem to be working correctly in skyward sword on dolphin. I also tried using my joycons on the ryujinx switch emulator and the motion controls seem to be malfunctioning there as well. Is anyone else having a similar issue? I'm wondering if maybe betterjoy is causing the problem. I hope one of you have an idea of what might be the issue. Thank you.

[JosJuice]

when I look in the configuration I see that the accelerometer values are high despite the controllers sitting still on my desk [see attachment for screenshot].

This is normal. What the accelerometer is sensing is the force of gravity, which is roughly 9.81 m/s². In order for the accelerometer to read 0, the controller would need to be in free fall.