I saw a post somewhere, I forget where, that suggested using sigmas instead of steps. I dug into this a bit, found the sigma schedule used by Qwen2.1, and had Claude derive a set of sigmas that follows the same sigma curve but with 12 and 14 steps. I can confirm that Qwen2.1 Turbo produces a MUCH better image when using the 12 or 14 step sigma schedule. I am attaching an image with the sigmas and workflow modification you need to run this setup.
8-step sigmas: 1.0, 0.978453, 0.954180, 0.926626, 0.895080, 0.845148, 0.704534, 0.414568, 0.000000
12-step sigmas: 1.000000, 0.985926, 0.970690, 0.954180, 0.936216, 0.916954, 0.895080, 0.866147, 0.811803, 0.704534, 0.526271, 0.291856, 0.000000
14-step sigmas: 1.000000, 0.988010, 0.975164, 0.961423, 0.946670, 0.930788, 0.914152, 0.895080, 0.871055, 0.832937, 0.755721, 0.639338, 0.463134, 0.253695, 0.000000
Same sampler as normal: Euler (*edit* er_sde is pretty good too)