Hello, I am new to houdini and I am working on a flip tank sim where a submarine comes out from under water. All the sims I have run so far have the water looking pretty blobby when I mesh them. I was told I need to decrease the particle separation in order to achieve a better, thinner looking water. I decreased the particle separation to .5 and the sim has been cacheing for 15 hours and is only 2/3 done. Is there a way to speed up large scale simulations? Is it better to work at a smaller scale then scale the assets up later? Any advice would be appreciated.

Thanks