Emulator

Game Name?
Any Wii game with IR support, (Wii Play: Tanks is a good one for testing)

What's the problem? Describe what went wrong in few words.
When Dolphin is scanning for Wii Remotes, the cursor is noticeably laggier than when it's not.

What did you expect to happen instead?
I should be able to have:
"Continuous Scanning" on,
All Wii Remote slots set to "Real Wiimote",
Less than 4 wiimotes connected,
Not experience IR lag.

What steps will reproduce the problem?

1. Set the number of Wii Remote slots you wish to play with to "Real Wiimote". The rest should be set to "none". Continuous scanning should be enabled.
2. Connect the Wii remotes to computer (1+2), Launch a game or the Wii system menu
3. Observe cursor movement; lag free.
4. Repeat steps 1 - 3, but have more "Real Wiimote" slots than actual remotes connected. The lag should be noticeably greater as Dolphin is scanning at the same time.

Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
4.0-6820 (latest, 22nd June)
4.0-4503

Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
No working Dolphin versions found

What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
Mac

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
Unideal solution: Disable Continuous scanning, or have the same number of "Real Wiimote" slots as Wii Remotes connected. (prevent Dolphin from scanning basically)