Caustics sampling?

[cmdrkitten]

C4D. So I have this scene with some glass things flying past the screen and I want some nice-looking caustics to fall on the ground beneath them. I feel like I'm most of the way there (I mean, it is clearly being calculated) there's just some sort of sampling I'm not getting enough of and I can't seem to figure out how to get it to not look like noise sprinkles. Any help would be greatly appreciated!

[sprayer]

https://coronarenderer.freshdesk.com/support/solutions/articles/12000043584-how-to-render-caustics-
caustics ready for production renders planned for later versions of corona