FWIW, when I first spent time with my Kemper, i chose a number or profiles and immediately set to using them at rehearsals. Having levelled them all for my needs, with the loudest I use falling just short of clipping the output, I ALWAYs find professional and RigManager content to be significantly quieter.
There might already be untapped headroom in the profiles which hold back the full output.
All factory profiles and commercial profiles are set to mostly standard levels, that is Amp Volume and Rig Volume at Noon (+- zero dB).
There is no need to push the Rigs to just below clipping.
By using max volume on the Power Cabinet chickenhead the headroom of both devices are perfectly matched.
Then use Power Amp Boost at +6 dB or more, and dial your required volume by using „Monitor Volume“. You can easily reach (and exceed) the 200W rating by this. Hence the Wattage Meter in the Kemper Kone Menu.
The OP might have missed to check Monitor Volume. If it was e.g. 12 dB lower, you reach only a 16th of the power, that is 12.5W only.