from 10 to 50 decent skills would be 60+, while 70 dist would be TOP, u don't really need more than that.
from 50 to 130 your distance skill is secondary, as simple as that, u could try to get 70+ dist but on reality u don't need that much distance.
from 130 to 150 90+ is optional, really helps but isn't neither your main damage.
now, why? due paladin below 150 is the most overwhelmed vocation, knight have mana issues but with imbuements can overpass those issues at lvl 90 and do a whole rotation of aoe damage, mages are simply broken and kill aoe running everything literally the easiest voc to reach 150 (if u know how to afford it). But paladin? paladin is forced to kill 1by1, they are the only vocation that actually misses their main outcome of damage, so it's not worth having "amazing skills" as paladin.
What to do then? Train magic lvl first.
The more magic lvl u have the more aoe damage u do, the more u heal, the more holy missile hits and more. So don't think it twice, hit average paladin distance and as soon u get holy missile focus on magic lvl, preferably at least ML 20, at lvl 50 hit divine caldera and hunt semi aoe, or full aoe running stuff like bonebeast, u would do a lot more of damage and exp and if you have money to skill better invest it into affording those hunts to hit easier lvl 100.
once at lvl 100 u can still aoe hunt and more likely u would not stop using divine caldera ever again so the most magic lvl u get the better payoff, even if you hunt target u can pull 2-3 mobs and use caldera and would increase considerably the exp/hour.
only at lvl 150 90 dist is a MUST have, otherwise don't bother with it, as long as u have 60-70 dist u would be okay, there is almost no difference from 60 to 90 at low lvl, u still miss a lot of ammo and target hunts are simply too unworthy compared to aoe hunting.