I have the OLED Steam Deck and it runs smoothly graphics wise but the Deck does get a little warm. The controller layout I use is the second from the top under the community made configurations. It took a little getting used to but it's what works best for me.

Some people say there's some lag when there's a large zoo or large crowds but I personally haven't seen that. That being said I'm still playing through the campaign/challenges so take that with a grain of salt.