The blurriness sadly won't go away since DLSS is fed a lower resolution image and upscales it. No matter how good the upscaling will be, you are dealing with lower resolution textures. You can try and optimize the "AI" on cutscenes and elements where the camera angles and objects are exactly in the same state, but we've seen that even then it's not enough to fake native 4K and the textures still look lower res. While some people are focusing on the fact that DLSS tries to mimic a native resolution image while "saving" some performance, I see this the opposite way - I can't believe how little performance is gained considering you are essentially playing the game in a significantly lower resolution and upscaling it (which should increase the performance much more than DLSS really does). Possibly the only meaningful use case for DLSS is when your card isn't good enough to handle 4K, you already lowered all the settings but still aren't getting enough frames. Then turning DLSS on is the final step you can try before lowering your resolution to non-native. Because otherwise, it degrades the image quality much more than simply turning your setting dial from high to medium would.
As for the ray-tracing performance, the -22% drop doesn't tell the whole story. Due to the very limited amount of ray-traced elements, it is much more relevant to look at minimums (the situations where there likely are ray-traced elements on screen). These took a hit almost by half. If you look at averages, they are skewed by the fact that much of the time there are no (or very little) ray traced effects on the screen, and during that time the game performs almost as if ray-tracing was off. The minimums tell us that turning on ray-tracing and seeing ray-traced objects will likely lower your performance almost by half as it happens. Which isn't a great showing, considering how little ray-tracing there is in this game. I wish this was made more clear in the review, as someone in the market for a GPU might now think RTX effects will only cost him ~20% frames, which clearly isn't the case.