Recommended Setting:
Highres-Fix
Sampler: DPM++ 2M Karras, DPM++ SDE Karras
Steps: 20~40
Hires upscaler: R-ESRGAN 4x+ , R-ESRGAN 4x Anime6B
Hires upscale: 2
Denoising strength: 0.4 ~ 0.6
CFG scale: 8 ~ 10
VEA: kl-f8-anime2 OR vae-ft-mse-840000-ema-pruned