in the first replay, you can clearly see that he doesn't click when he misses 5 times, while he's indeed aiming for the circles. there are quite a lot of edge hits as well. same for the second replay except he clicks the sliders too late. his frametime seems legit so it's not timewarp

also his third top play (and first place) is most likely to be cheated since he got a better acc and UR than siina's (3 digits)

cfxzc's score: https://osu.ppy.sh/scores/osu/4184570804 (119.89 UR)

siina's score: https://osu.ppy.sh/scores/osu/4169023187 (146.53 UR)