Does it only support lightning model?

[arso7]

First off, thanks so much for your hard work and updates!

Right now, the max step count is only up to 20. I tried using step 20 on a few SDXL models, but the generated images came out noisy and blurry.

Here's a comparison of the images:

[GiusTex]

the generated images came out noisy and blurry

I could add an option to change the scheduler.. (I already changed it in some past tests, and it worked but I didn't change the model, so changing the scheduler is possible, now what's left is to check if it actually helps)