Yeah that’s pretty much the standard you can expect for FSR, 1.0 or 2.X.
It’s not great, generally. Can be okay or even good when working with high resolutions, like 4K. Passable at best at 1440p. Just bad at 1080p and it gets worse the lower the resolution goes.
At 720p/800p like on the Deck, I only use it when the only option is FSR 2.X, I use the ultra quality preset, and only when I absolutely need to squeeze out extra performance.
UKer here.
I ordered on Thursday the 16th, when they first went live. I received it on Saturday the 25th.