If your coil is sluggish, lower the mass while keeping the resistance the same. Clapton and twisted raise the mass (naked will have the lowest mass for a given resistance), switching the wire composition will change the mass: kanthal, nichrome, or stainless steel (highest to lowest mass for a given resistance), lastly coil dimensions (gauge, coil diameter, and the number of wraps) are the other vairables that influence coil mass (fewer wraps of of higher guage wire can have the same resistance with less mass).
Too low coil mass can be an issue too (wick scorching/wispy
vape), but rarely an issue with beginners.