I don’t know how experienced you are, so I don’t want to seem like I’m talking down to you but I can think of a few tips that might help:

finger tighten the nuts before you tension the chain, so you don’t have to turn the nuts as many times, when you start torquing them down.

tighten the non drive side nut first, but of course don’t tighten it all the way down.

try to tighten the nuts back and forth so you get even tourque on the axle from both sides

if you’re not using a chaintug or something else, try holding the wheel centered between the chain stays as you tighten the nuts.

hope those help