Remote Lag? Apple TV 4K

I had this issue and was finally able to fix it.

I have two Apple TV 4K devices, 32 and 64. Both were having the lag issue regardless of which remote (I even tried my 4th Gen ATV remote) or ATV. I recently finished my basement and my TV (65in LG OLED) is hanging on the wall and behind that wall is my utility room where I keep all my AV equipment. The equipment, including the ATV 4K, sits roughly 2-3 ft high on shelving units. Also on that wall I have 3 monoprice Alpha in-wall speakers.

I noticed that whenever I had the lag issue, it would improve if I moved closer to the wall separating the viewing room from the utility room. This told me that it there was a signal strength issue or interference issue. I tested the signal strength idea first. I took the ATV 4K off the AV self and moved it on a horizontal 2x4 I had running between wall studs. This moved the ATV 4K directly behind the TV and right up next to the drywall. This moved the ATV about 2 feet closer to were I sit to watch TV so in theory, the signal strength should improve thus reducing the lag affect if signal strength is the issue. The result: The lag was worse. Much much worse. Eureka!

I then moved the ATV 4K directly down to the floor. Same distance from the viewing area but as far away from the TV as I could possibly get it. The result: NO MORE LAG! I continued to use the remote for the next few hours and the lag issue never returned.

tl;dr

I fixed my AppleTV 4K remote lag by moving the the ATV 4K away from my LG OLED TV. Specifically, so that the TV wasn't directly between the ATV 4K and where the remote would be used.

Note:

It is possible that it was a combination of TV, Speakers, Receiver, IR Repeater, Network Switch, Speaker wires, Power Strips, etc that combined to cause the interference but in my opinion, the LG OLED was the biggest cause of remote lag.