Bump
I know the discussion was over. But I want to add some information about the FC scene
Flashes already had reached lightspeed/time-stop velocity BEFORE they passed by Superman, As it clearly states in the Essential Edition copy
"Only we can divert those omega finder beams! At lightspeed time stops! Death too! Flash fact!"
"We DID it wally! Now go!"
https://ibb.co/S6YPYkP
Combining the fact that even in this copy Barry explicitly states they need to go FTL speed to survive Darkseid's singularity. And we all know they did
https://ibb.co/vVxJzv3
So even if you want to lowball this scene as hard as possible, Superman at least performed a lightspeed reaction if not FTL
I dont think there is any proof to suggest Superman can resist it. On the contrary, Wally literally states he could steal Superman's speed and the speed steal did work on Superman
But the OP seems to ask can Superman react to a CISless wally not a Flash VS Superman thread. Though the options op gave and the description on the topic seem to imply otherwise ❌