Movie with a massive audio delay

[FatMax1492]

What is the CPU load like when you play this file on your laptop?

I've tried some other high bitrate movies as well, like the Star Wars 4k77 restoration project. I had no problems when playing that.

When playing this one Chinese movie: (37.4 Mbps)
- First it buffers in with a minute or two at 100%
- When playing it sits anywhere between 60% and 100%.

When playing 4k77: (86.0 Mbps)
- It loads in almost instantly (still at 100% usage)
- When playing it sits between 30% and 70%

I tested this with nothing open except firefox with a single tab, and taskmanager. On both files I used a DTS-HD MA 7.1 audio track.