His clone is identifiable: if Wukong suddenly stops, it's probably the real one going invisible. The clone doesn't move.

His R can be cast twice: don't Flash the first knockup if the second one is coming right after.

Punish him when his W is on cooldown (20-16s): it's his only protection and mobility in lane.

Champions that outscale in 1v1 beat him because Wukong is a team engage champion, not a duelist.