[BUG] Low download speed at certain resolutions.

[joaquin1801]

Describe the bug
My download speed is 11MB/s, but if i select 1080p for a movie, the speed falls to an average 2MB/s. 720P and 480P works fine and download near of the 11MB/s.
Ahh, one more thing is the first idk 2 minutes, the download speed start at 0MB/s and slowly increase passing time, 0.2 0.6 0.8 1, etc after the 2 minutes stabilize at 2.8 more or less

Version
1.3.73

Platform
Opera and chrome, windows 10

Steps to Reproduce
i use mostly https://flixter.ac, but in others sites i have same irregular speeds downloads.