This problem could be caused due to USB 2.0 bandwidth limitation or CPU power limitation. However, playing videos while working on an alternate office application such as a software download or emailing. This occupies bandwidth in the first place, and causes inefficiency for video
Also two things to be aware: j5create USB 2.0 HDMI adapter supports any monitor up to 1920x1200 resolution at 32bit. Unfortunately when playing a video, j5create only supports 720P video (1280x720) “film resolution”. In order to get the best video play back performance, we suggest adjusting the TV/monitor to the resolution that fits the ‘film resolution’ e.g. 1280x720; 1366x768; 1024x768 before playing the film while tplugging in the USB 2.0 HDMI adapter.
If the user wishes to keep their monitor at 1920x1080 ‘monitor’s resolution’, it will still enable play back video at 1920 x 720 (or 1280 x 720) film, but the video’s landscape may need to be changed. In this case, this is up to the user's preference.
For 1080P video playback, we recommed USB3.0 super speed product such as JUA350.
The USB 2.0 display adapters are designed for office applications. They are limited to the transfer speed of USB 2.0 so you will see some latency or choppiness when streaming video or gaming. USB 3.0 adapters are much faster and are highly recommended if you plan on using the screen connected to the j5create adapter for anything that is graphics intensive.