voxx.app0.12.1 laboratory comparison against 0.12.0: same Windows PC, two local SFU clients, synthetic microphone, open mic, standard noise suppression, optional effects and overlay off. Eight-second warmup and ten samples per stage. These are short laboratory samples, not game FPS, physical RAM or a Discord comparison.
4.27% → 0.84%. Tray voice: 2.83% → 0.66% p95, while median CPU increased slightly from 0.53% to 0.61%. Improvement was not uniform at every instant.
Tray private commit p95: 392.6 → 347.0 MiB. Visible-room private commit: 366.6 → 368.8 MiB. Private commit is not physical RAM. Measure your own session in Settings → Performance & support.
Same short test against 0.12.1: visible voice CPU p95 stayed at 0.57%; tray CPU p95 changed from 0.68% to 0.55%. Voice private commit p95 changed from 370.2 to 351.3 MiB visible, and 357.2 to 345.7 MiB in the tray. Lobby, Settings and after-leave memory were higher. These mixed results do not establish a universal reduction. This preview is not publicly released.