CHUWI AeroBook Plus 15.6 - poor performances

I’ve just bought an AeroBook Plus 15.6 inch Intel i5-6287U 3.5GHz 8GB.

Very unsatisfied with the overall quality of the laptop.

I am working side by side with my DELL with has Intel i5 and 2.30GHZ and the same youtube video is perfect with dell and is horrible with Chuwi. Can’t believe it, very disapponted.

Is this the standar or may i suppose something inside is damaged?