Number of lagged frames due to rendering lag/stalls: 1011 (10.5%)
You'll have to lower your game settings a little. OBS requires a little bit of your graphics card to render the scene (that is, put all your sources together into one picture).
Video stopped, number of skipped frames due to encoding lag: 15/9628 (0.2%)
You may also need to close some background processes as your CPU couldn't keep up (though it may not be a big issue). You can also go into Settings -> Advanced and raise the CPU priority if you want to try something easier.
