Freeze on fast tab switching

Thank you for creating pwvucontrol, it's a really good replacement for pavucontrol. High CPU usage on tab switching, and eventual freeze: https://cum.army/u/2025-09-25%2011-15-34.mp4 System info: NixOS, Hyprland, [pwvucotrol 0.4.9](https://github.com/NixOS/nixpkgs/blob/554be6495561ff07b6c724047bdd7e0716aa7b46/pkgs/by-name/pw/pwvucontrol/package.nix) reproducible via flatpak as well