For me "red hot" is like at least 15% above normal.
Like Phelps is shooting 30% from 3 in conference games, which isn't great, but isn't awful. (It's actually a little better than Hefner on a similar number of shots, and better than Boots shot last year.)
But he and Taylor are both shooting sub 40% from 2, and for Phelps that's on a massive number of shots. He's taken a little under a third of all of our 2pt shots in conference play. (granted, a big chunk of these were when Taylor was out, a whole quarter of them were just against Kentucky.)
Taylor on the other hand shoots 35% from 3 normally and has the highest assist rate on the team so defenses already have to pay extra attention to him. What it always comes down to with Taylor is him having to make the right call on when it's time to use that extra attention to set up other people or when he just needs to go for it himself no matter what the defense is doing.
That's why having Payne be reliable in the post would be such a game changer. Right now if Taylor decides the game flow is best suited to him setting up other people, there's nobody to set up that we can count on every night, but Payne could be that guy.