As discussed in the previous thread, there were at least a hundred Chaos Emeralds accounting for his layers, and Ultra Sonic's speed growth was described on an exponential scale and thus would eventually hike so high by the second that it would eventually surpass that of his AD. Basically almost like Kratos in the sense of catching up through RE on top of AD, while Ultra's speed is growing at a rate quicker than anything else.
That my friend is where you are wrong.
Demonic power is the source of everything for a demon, the more demonic power you have the more all of your attributes get boosted be it physical or magical/hax
Human blood is a source of demonic power, the more blood you consume the more demonic power you get.
EoG Dante > Fruit Urizen > 1 month of blood Urizen > Urizen (after 1 day of getting constantly pumped with blood by the Qliphoth) > Urizen (some hours getting blood) = DMC 5 prologue Dante > DMC 4 Dante > DMC 2 Dante > Chen > Vol 2 Dante (casually stomps void Mundus) > Void Mundus (is the Demon world energy/nexus) > Sparda > Sparda DT Dante > Full power Mundus = The Despair Embodied > Sealed Mundus (casually one shots Dante) ~ DT Anime Dante > Anime Dante = Sid/Abigail > DMC 1 Dante > Nelo Angelo > Sealed Argosax existence messes everything > Nightmare > Demon world = infinite sized 5D realm
That's the basics of the scaling, the meat of the wank comes with Urizen before and after the first hours getting amped by blood to fight Dante.
Urizen is the demonic half of an almost dead Nelo Angelo/Vergil. Basically this Urizen would be the weakest character on the scaling (if he even is part of it as he lost the amp mundus gave him, otherwise he would be 6C) as V thought he could defeat him using Nightmare. After a few hours of getting blood this Urizen grew to the point where he could fight DMC 5 Dante on even grounds, during this fight Urizen kept getting more and more blood which, as shown above, is a tremendous power boost.
Dante's own reactive evolution allowed him to keep up with this power boost for around 25 hours per the game's timeline iirc, after that he gets knocked out. When he wakes up Urizen has grown even stronger than before to the point he easily swatted Dante like a fly and this happens in the moments that Nero gets destroyed by Urizen. And when he wakes up again Dante is knocked out by just breaking the forcefield Urizen has.
Now Urizen keeps getting this immeasurable blood power boost for a month, fortunately for Dante he also got said power boost as the tree confused Dante and Urizen (as they are brothers) and also made a throne for him.
After that Urizen eats the fruit which is considered some godly power boost compared to the tree and he still lost to Dante after the 1 month coma.
TL;DR: In both layers of everything and RE/AD sonic is getting outmatched hard af, in wiki lingo Urizen went from 6C/FTL to very high into Low 1-C/immeasurable in a couple of hours at worst and then proceeded to keep getting the same power boost for another 25 hours and Dante's RE/AD allowed him to keep up for all that time.