High CPU watching Amazon Prime Video movie
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Reproduction steps:
No special steps, just open FireFox 70.0.1 x64 and select a movie in Amazon Prime Video.
There is high CPU, and also sometimes even affecting the sound of the movie...
Actual result:
High CPU, sound is affected sometimes in some scenes and not fluent video image...
CPU Screen-shots:



Perf Traces attached...
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@harlan4096, hello! Can you also send KTS logs (+new perf traces)?
Thanks in advance. -
Here You are: https://cloud.qainfo.ru/s/hU59mOyiksKfRpl
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