I feel like there isn't much to do after a short time, once getting 0.5 PW per click becomes irrelevant.
Maybe add some extra things to do to boost other things. They wouldn't be needed in any way, but doing them would make things faster.
Maybe add some lazy minigames to boost different things? Either as a base number like the clicking, or as a temporary buff. Maybe you can switch what the reward you want is?
As a random example, using your arrows or wasd to solve a simple random maze. Nothing longer than 5-10 seconds.
It would be cool if you could think of thematic minigames, things that would at least somewhat, represent the task you are 'helping' with. Like something that would represent 'phishing' in some way, or something that would represent writing or installing malware, etc. You know, for immersion, lol.