Advice on wireless button box with minimal latency

I recently decided to make my basic usb button box controller wireless. I was thinking about using an HID compatible bluetooth chip but I am not sure about where to start.

My setup consists of 22 buttons and 1 potentiometer, to use along with my simracing rig.

I thought going with two hc05 setup as master and slaves would be an option but I would rather create something that can be recognized by PC as a human interface device, like an ordinary bluetooth gamepad.

Any advice would be appreciated.