The water dispersion doesnt look THAT bad to my eyes. Personally, Ive never put much value into how the water "looks" coming out of the grouphead. Ive currently got the precision screen in my E61 group, but for years before that, in all the E61 machines I owned, I use the stock OEM screen, and the water never "looked" like it poured evenly. It always looked biased to one side or the other. The precision screen does provide a more aesthetically pleasing "even raining" effect.
It may be the lighting, but, honestly, it looks more like an issue with coffee and prep. Again, it may be the lighting, but the coffee looks like its a little stale. It looks on the thin side, viscosity wise. What kind of coffee are you using, when was it roasted, and also, whats your dose and basket choice?