This isn't a lightning, but DMD2 model. For those who don't know, it's purpose is the same as Lightning/Hyper, but with a different look. I found that DMD2 works best for V5.
Recomended parameters:
LCM + Exponential/Karras scheduler,
4-8 Steps,
1-1.3 CFG.
Highres fix: upscale by 1.4, 2-3 highres steps, 0.45 denoising.
If you get any mutations, try changing the amount of steps and/or scheduler