Xerath Ult Rework Idea

I think it would be super dope if 's ult was similar to what it is now, but instead of getting 3 - 5 casts, it fires like a machine gun where your cursor is the whole time and with every rank the fire rate increases. When I say machine gun I mean it should fire at a rate ≥ 's ult. Decreasing the total damage and AOE is fine but currently, his ult just feels so underwhelming. He stands still and charges up and just drops a few painful raindrops but that's it. Making it rain blue hell from the sky would be awesome.

Edit:

It wouldn't do near as much damage in total, or maybe the shots were inaccurate yet fast (like hip-firing in an FPS... or think raining a volley of arrows from the sky that float in the air for a second before they drop). I just think his current ult is pretty lame when 's zooms out and makes a noise and the bullets are huge, and laughs while you can hear it off in the distance. For being a super power that all of Shurima fears, sometimes you don't even notice his ult, which is honestly a waste.