17:01:38.339: Output 'adv_stream': Number of lagged frames due to rendering lag/stalls: 166 (0.1%)
17:01:38.339: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 1246 (0.5%)
Rendering lag: reduce a bit ingame graphics
Not enough bandwith: network issues. If you can´t rise bitrate you will get some pixelation playng quick movement games, like FPS.