1. Your log contains streaming sessions with dropped frames. This can only be caused by a failure in your internet connection or your networking hardware.
It is not caused by OBS but OBS can help. Before you start streaming, go to Settings > Advanced > Network > enable Dynamically change bitrate... > [Apply] > [OK]
2. The Hardware-accelerated GPU scheduling ("HAGS") feature added in Windows is currently known to cause performance and capture issues with OBS, games and overlay tools. It's an experimental feature and we recommend disabling it via
these instructions.
3. Multiple Game Capture sources are usually not needed, and can sometimes interfere with each other (scene-Gioco). You can use the same Game Capture for all your games. If you change games often, try out the hotkey mode, which lets you press a key to select your active game. If you play games in fullscreen, use 'Capture any fullscreen application' mode.
