Wireless mouse pauses every 10 seconds

Why do I have difficulty with Wi-Fi or Bluetooth devices when USB 3 devices are attached to my computer?

Some USB 3 devices can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.4GHz band to have issues communicating with your computer. Here are some tips to avoid this issue:

• If your USB device has a cable long enough that you can move the device, place it away from your Mac—and make sure not to place it behind your Mac, or near the hinge of its display. The antennas for Wi-Fi and Bluetooth are located there, and USB 3 devices placed there might interfere with your wireless connections.

• If you're using adapters or dongles on a Mac computer with Thunderbolt 3 (USB-C) ports, plug them into the front port on the left side of your Mac, or into the ports on the right side (if your computer has them). These ports are the farthest away from the antennas, making interference less likely.

• To avoid interference on the 2.4GHz band using Wi-Fi, try using the 5GHz band instead. You can change this on your wireless base station. Bluetooth always uses 2.4GHz, so this alternative isn't available for Bluetooth.

from:

Using USB devices with your Mac - Apple Support

in addition, a very crowded Wi-Fi environment, such as in a large apartment building, can cause similar issues for slightly different reasons.

This problem can be caused by a crowded network neighborhood or Wi-Fi Interference or a runaway Application. Blaming it on MacOS version without more proof is nothing more than a correlation, NOT a cause-and-effect.

None of the likely contenders I listed are caused by MacOS version, so don't hold your breath waiting for Apple to send you a fix.

The quick check for crowded Wi-Fi network neighborhood is to hold down the Option key while you click on the Wi-Fi Icon on the menubar. More than a handful of Networks listed there is a crowded network neighborhood, in my opinion.

macos 10.15.4

macbook pro 13'

mx master 2s

same problem

Can confirm this is happening to my bluetooth mouse too. It stutters every 20 seconds. It was a mistake upgrading to this version. Frustrated how Apple hasn't fixed this yet.