The basic issue is that TFA and TLJ’s characters are not the same characters. It’s very clear the respective directors wrote their own versions and they are very hard to reconcile. This doesn’t mean any one is particularly better–just that they are different and uneven.
A smooth edit would have to reconcile the characters in either direction–either change TFA or TLJ’s portrayals.
They’re pretty consistent. That’s the only saving grace of there being so little character development in TFA, there’s nothing to contradict in TLJ.
Let’s be honest, Snoke was pretty much wasted. The rich playboy appearance would be fine if it wasn’t erased in 4 minutes after introduction, so that image was also useless. I’ve said this before; there was a huge missed opportunity with Solo to fix the majority of Snoke’s issues–instead of Maul, make him Q’ira’s boss. One cameo explains what Snoke was doing in the OT, how he got power, and fits his rich crimelord image.
But he’s not a crime lord, he’s a dark sider and has aspirations of galactic domination, not wealth and crime. He wants to decide the law, not subvert the law. Just because he doesn’t dress in black with so many shadows that he might as well have a sign that says “evil” pointing toward him doesn’t change that.
He dresses like emperors normally do. We usually see kings and emperors dressing extravagantly. That’s the norm.
As it stands, the best possible edit would reconcile the fact he’s a clone/experiment of Palpatine.
That’s literally the canon thing, as shown in The Rise of Skywalker… No additional editing is needed to communicate that idea, except to seed it earlier by revealing Palpatine to Kylo earlier in the narrative.