Update bootcamp drivers
You can download the latest drivers with Boot Camp Assistant. Instructions for that here.

TLDR version:


Boot into MacOS
Connect a USB drive and format it as MS-DOS (FAT) with MBR
Open Boot Camp Assistant and select only the middle option (Download the latest Windows support software from Apple) or select Actions -> Download Windows Support Software from the menu bar
Select the USB drive as the destination
Restart in Windows
Open the USB drive and the WindowsSupport folder
Run setup.exe and select repair if needed