Through different metas and teams, Victor had to perform various different roles in his respective teams. On Envy/Optic he was a supportive role, even when playing duelist, his job was not to frag, but rather to make space and get info, since that's what was optimal in the late post-plant meta of 2021 and entire Chamber meta.. and he was very good at it. If you look back in his "food" days (T1 and beginning of Envy, before Marved joined) his role was slightly different where he was supported by other players on his team, hence he was displaying the same fragging power, since his role was specifically to make plays. This is similar to the role that he has now on NRG, where he is supported in either his duelist or anchor role by others around him, rather than him setting up plays or other players on the team.
His pure skill ability was always there, even if he was less influential on the scoreboard due to different roles. Also, people that don't realize that being able to switch between roles and do them all at this level is an huge team asset in itself.
People that say "Victor just got good now" simply never played this game past the level of "ranked" or a high level in an older tactical FPS title that shall not be named... there's a deep lack of tactical understanding of the game that's being displayed in many of the comments here.