With the Magma, you want the coil as close to the airhole as possible without touching the deck. That minimizes throat hit/maximizes flavor. I use a 1.2 to 1.4 ohm coil and it's a room temp vape with a standard drip tip - what kind of power are you trying to run through it? Anything from 7-10 watts is barely warm on mine. If you're pushing the power higher than that without a long drip tip, that may be part of your problem re: warmth. Keep in mind Hanas/Canas don't have buck circuitry, only boost, so it may be that you have it set to low watts but the chip can't regulate down that low and is just dumping the available battery power directly to the atty (giving you higher wattage than what's being displayed). If your ohm resistance is blinking when you fire it, it's just dumping the battery power.
That being the case, if you've tried moving the coil closer to the air hole and it's still too much throat hit for you, I'd try building your coil a little higher (2.0 maybe) to get closer to the watts you're actually seeking.
If you prefer higher watts but don't like your vape that warm, get a long drip tip.
As well as lower PG higher VG, of course.