I'm running into issues when printing at higher speeds on my VC3 400. The issue is independent of the used filament manufacturer. I currently print PETG that's been in a food dehydrator for 24hrs, so probably as dry as you can get.
Setup is a NF-Crazy (Mosquito-Clone) with a Volcano-Style Block (Like the Volcomosq, but also by Mellow). The nozzle is a CHT-Clone 0.6mm with a CNC Volcano nozzle adapter. The setup itself is quite capable in the sense that you can melt a shitton of material at once, but i get really ugly layer changes: