Empty nouns
All the nouns, terms, Forces, Trophies, techniques, abilities, Crydes, and everything else just keep the flow bogged down.
Heck, I'm surprised "Flow" isn't an actual proper noun used here as another Concept to toss out to bog down every other paragraph without really telling you what it does and why.
It's kinda late in the series now, but I'm getting headaches reading all the proper nouns of "abilities" the MC uses in a paragraph. This is how the action goes now: "He used Void, then unleashed Yin which caused the Prana to be supercharged with Yang. Then he reinforced the Shield with Particles and shot that off using Queen's Gambit to pierce his enemy's Cover. That reduced his Energy Regeneration at the cost of his Trophy...."
The non action parts are full of expositional training. The object of story telling is to show, not tell. The MC has waaay too many "skills". It would be better served if the mechanics of the story stayed within the " System" tropes vs the combination of cultivation. Then the 21 abilities, 15 techniques, and 10 Forces the MC uses would at least be easier to remember because they would be explained.