I was able to completely FIX my issue by changing one driver setting.
Machine Info:
2016 MacBook Pro 15" TouchBar
Broadcom Driver 7.35.118.68
Windows 10 Creators Update
CenturyLink ActionTec C1000A Wireless-N VDSL2 Modem / Router
My bluetooth keyboard was sluggish, and my WiFi had high latency and was dropping the connection continually. Basically unusable.
I went to Settings->Wifi->Change adapter options
Right click on WiFi connection->Properties->Configure...->Advanced
Look for Disable Bands in the list, and choose 802.11a from the list.
I applied that and rebooted, and I have been without issue for a day now. I was about to buy an external WiFi USB adapter. May not work for everyone, but it solved my issues (wifi and sluggish bluetooth) completely.