Article showing performance differences between Wayland with power efficiency, Wayland with color accuracy and X11 desktop sessions in Plasma 6.4 on a generic laptop with integrated AMD graphics, superior X11 results across the board, various new Wayland bugs and problems, fundamental philosophical ...
If he/she want to compare performance, they should do some benchmark instead. If he/she want to compare efficiency, they should count the power cost in different situations. Just see the GPU/CPU usage is meaningless from all views.