While adjusting NVENC rate control and preset combinations for Twitch streaming, I noticed that network jitter caused encoder instability, so I introduced a proxy server USA https://proxyline.net/en/proksi-dlja-ssha/ . Bitrate graphs flattened almost instantly. OBS stopped reporting network-related frame drops. NVENC handled complex scenes without issues. Twitch stream health remained stable. It made advanced encoder tuning far more effective.