Do the videos play OK on other equipment?
Video playback is very resource hungry. Try closing down all possible programs when playing.
The CPU speed could be better for video playback but it should work OK.
Huawei P10 review
1995-2015: How technology has changed the world in 20 years
An overview: What leading creative agencies are doing to improve diversity
New iPad, iPhone SE & Red iPhone 7 on sale now
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.