Deku's at 8% is
16.816 Tons of TNT and Johnny is
59.4282371371893 tons so he already holds a massive advantage in AP and durability add on top
Regeneration (High-Low) and Deku can't really do any meaning full damage to Johnny with punches
Deku's advantages here are his massive intelligence advantage and
Analytical Prediction which means he'll basically just predict all of johnny's moves since they're rather basic punches and kicks and be untouchably that also includes Johnny's Teleportation if he does use it that is since Deku can just Predict where he's going to Teleport. Deku also holds a huge LS advantage here so he could possibly restrain Johnny but doesn't seem likely since Johnny has both
Intangibility and
Body Control.
honestly even with his Intelligence and
Analytical Prediction, Deku doesn't really have a win-con here since Johnny holds a huge AP/Dura + High-Low Regen means Deku can't do any meaningful damage and since Johnny has Teleportation, Intangibility, and Body Control, Deku using his LS advantage wouldn't matter, eventually Johnny is gonna get those hits in that matter and take out Deku cause of the Ap difference
tl;dr Deku lacks a win-con here cause of Johnny's AP, Durability, and overall more useful abilities