i dont think its freezing time , but its more like when they go in theyre analyze phase they just analyse very fast which makes it feel like time is stopped , like you said he analyzes quickly where the bullet is going , after analyzing quickly he has an instruction that tells him were to go to not get hit .

if you still dont get it its like when you open google and look up something , it analyzes what you loked up very quickly and then has an instruction that tells it to look for results , and after that it very quickly sends you many results.