The CGI isn't the only issue. Not only are the sounds Dragonslayer makes awful, but they skipped the Lost Children chapters, so there's a continuity issue for people who haven't read the manga wondering why Guts is suddenly so tired. It's not peak. It's garbage. Also, they didn't even get Guts' face right, the movement is stiff, robotic, and cringe, and they didn't even add nipples to the breasts of any of the women (or Guts, for that matter).