Let's get the traditional Digital Foundry bullet point specs out of the way. Astro Bot uses dynamic resolution scaling and I noticed a 1440p to 2160p rendering window (though of course, this could change according to content). Thanks to its simple, clean design and effective anti-aliasing, the game's image quality is really never an issue and it holds up well without any ghosting reconstruction or other image stability issues. It presents very cleanly, which is so important for legibility in a platform game - and Team Asobi got it right.
Frame-rate wise, it's also simple - it runs at 60fps. I played through nearly the entire game while covering it and found exactly one moment in which the frame-rate saw a minor hiccup where physics and effects monetarily overwhelm the engine, but that's it. Again, it's virtually flawless and I didn't encounter a single drop anywhere else in the game.