Something is a little off in those stats. For example, CC is not averaging 10.2 assists or 17.5 points per game . It seems like these # are projections if she played 36 minute a game. Her current stat line (from ESPN):
View attachment 757890
So, her assist, rebound, and TO averages are pretty equivalent (some slightly up and some slightly down) but her scoring and shooting percentages are down across the board. What is slightly skewed about this comparison is that Clark had a much stronger 2nd half of her rookie season (post Olympic break). Her rookie season first half numbers might not have looked that different from this season's but expectations were up for her sophomore campaign.
The general perception that CC is not playing well is that she, like Steph Curry, is really judged by her three point shooting. And she has been in a horrific shooting slump particularly on the road. Folks are not paying to see logo threes clank off the front rim. I would guess the nagging injuries are just throwing her shot off that little bit.
More than a few folks have commented that the Fever should just shut her down till the playoffs and that is not a bad idea but there are fan and financial pressures to get her back on the court so they may keep rolling her out at 80%. (Not great for the brand.....)