Here is an old idea that applies to the CW/CC.
If your shop allows your machine to get too cold, try this.
Suspend a light fixture holding a standard 100 watt bulb (I used a metal reflector type) and leave it on 24/7.
Suspend it over the Key Board section and have the truck homed to that side as well. This way the light keeps both somewhat warm. The light should be about a foot higher than the top of the machine.
My shop drops down to 50 degrees when the furnace is off and the weather is cold. I've tested my set-up for the last week, and the machine has no sluggishness.
AskBud