I run Windows in Bootcamp too, but gods the keyboard and especially the trackpad are horrendous. I have the 2016 model, and hate the keyboard even in MacOS, but it's really obvious that Apple have deliberately crippled the Windows drivers.

I eventually came across trackpad++, which at least renders it usable, but still unpleasant - I travel with a USB mouse these days (sigh, which obviously means a USB dongle for the MBP...).