Does your waxed chain shift differently than your oiled chain?

[Veloo]

Using my first waxed chain. It's a new FSA 10 speed chain. RD is a new 10 speed SLX. Cassette is a barely used 11-32 FSA. Shifter is Deore XT 10 speed.

Previous set up was STX RC 7 speed rear derailleur with a 7 speed KMC chain and 7 speed SL-M310 shifter.

Feels like the waxed chain moves to a smaller cog slower than any of my oiled drivetrains.
In particular it struggles to go from the 13 to the 12. I have to go from 13 to 11 then back up to the 12.
I've adjusted the shifter barrel but not much, if any, improvement. At first I thought it was too much wax on the chain but I've taken a heat gun to it to remove any excess so I don't think it's that.

Haven't done a deeper dive than that but thought I'd throw it up here anyway before I try another chain, take apart cable and housing, etc. It's had a number of rides now so should be well broken in.