After doing some brief testing with Kirby’s Return to Dreamland Deluxe on Deck, I’m happy to report that I’ve had no issues, at least as far as Yuzu is concerned. No texture issues, framerate is a rock solid 60 FPS. Footage available here.

Kirby on Deck performance settings

You should still get a decent framerate with the TDP limit set to 6 W, and the GPU clock set to 600 MHz. If you have PowerTools installed, I highly recommend disabling SMT.

Kirby on Deck PowerTools settings

Unlike Metroid Prime Remastered, the game actually doesn’t become sluggish if you lower the framerate or refresh rate. If you decide to force 40 Hz, you can set the TDP limit down to 4 W and the GPU to 300 MHz. You might even be able to get away with less than 4 CPU threads, or lower the max CPU frequency. At 30 FPS, you can reduce the number of CPU threads to 2, set max CPU frequency to 2500 MHz, TDP limit to 4 W, and GPU to 200 MHz. Turn on half-rate shading and you’ve got yourself a gaming session that will likely last five or six hours.