"This plugin slows down Homebridge" since upgrade to Homebridge 1.4.0

[HappySpaceInvader]

Since updating to Homebridge v1.4.0, I'm getting "No Response" from my switchable items in the Home app, and the following in the Homebridge logs:

[1/29/2022, 9:02:45 AM] [homebridge-cmdswitch2] This plugin slows down Homebridge. The read handler for the characteristic 'On' was slow to respond! See https://git.io/JtMGR for more info.
[1/29/2022, 9:02:51 AM] [homebridge-cmdswitch2] This plugin slows down Homebridge. The read handler for the characteristic 'On' didn't respond at all!. Please check that you properly call the callback! See https://git.io/JtMGR for more info.

Here's my homebridge-cmdswitch2 (v0.2.10) config...

{
    "platform": "cmdSwitch2",
    "switches": [
        {
            "name": "PS4 Pro 7000",
            "manufacturer": "Sony Corporation",
            "on_cmd": "ps4-waker -d 10.0.0.42",
            "off_cmd": "ps4-waker -d 10.0.0.42 standby",
            "state_cmd": "ps4-waker -d 10.0.0.42 search | grep -i '200 Ok'"
        },
        {
            "name": "PS4 Pro 7200",
            "manufacturer": "Sony Corporation",
            "on_cmd": "ps4-waker -d 10.0.0.40",
            "off_cmd": "ps4-waker -d 10.0.0.40 standby",
            "state_cmd": "ps4-waker -d 10.0.0.40 search | grep -i '200 Ok'"
        }
    ]
}