I have this Logitech Cordless MouseMan Optical mouse which is probably 16 years old. I really like the ergonomics of it and also it can be taken apart easily (lots of screws, every part accessible and big enough) which allowed me to replace malfunctioning micro-switches for particular buttons.
I have a problem though - I'm using it on an old mouse pad which is falling apart. Unfortunately the mouse doesn't work well at all on other mouse pads available these days on the market (I tried at least 4 with different types of materials.) The sensor "gets lost" after I move the mouse too rapidly and stays in one place instead of moving accordingly, or it ends up slightly away from a position on the screen you'd expect it to be.
Would it make sense to replace the sensor, or a diode at least? I'm not really experienced or don't have professional equipment, just a regular soldering iron.
The sensor is on a separate PCB:
Same thing flipped upside down:
This PCB is then attached to the rest of the mouse through this connector on the main board: