Real wiimote has major input lag

This is my first time trying Dolphin. I tried Skyward Sword and SMG2 and both games seem to run great, but my wiimote cursor is like 1 second behind my movements.

I'm using a really cheap wireless IR sensor bar and bluetooth dongle I got from ebay (they were like $2 each). Not sure if that is the culprit. I believe my PC specs are sufficient to run at any settings, correct?