My record was playing at -15 C........whatever that is in ancient american temperature
First thing......if you're going to play in the cold, it doesn't help to set you gun up in the heat. Raise your dwell a couple points then set your LPR once your gun is chilled down to the temperature you'll be playing at. With a margin for safety as well since it will cool more as you shoot.
Keep your batteries fresh.....cold batteries can die fast or lose current output.
If you're in the cold and using fragile paint........then it's a whole other ballgame.
Raise dwell, lower pressure. Again set up LPR at proper temp. Lower hopper feed rate or tension or both. Lower guns ROF if it's high. Raise eye delay. Run a loose bore. Try to keep paint warm whenever possible. Use cheaper paint that's bouncy in the summer....it will break fine in the cold.
I've used a lot of lubes without issue in the cold. The trick is.....you need something a little thinner. When everything shrinks.....parts get tighter. A thicker grease may cause more drag than a thinner one will. No dow based grease will freeze in the cold but some can thicken up. Stick to something more fluid. It won't last as long so you'll have to lube each time you play but it'll work nicer. You can thin out your normal grease with a drop of oil in a pinch.