stream.dash: fix stuttering streams & maybe high CPU load (#1718)
stream.dash: fix stuttering streams & maybe high CPU load (#1718)

* stream.dash: fix stuttering streams & maybe high CPU load

This issue is independent of the stream quality.

* stream.dash: fix stuttering streams & maybe high CPU load

This issue is independent of the stream quality.

gravyboat/streamlink,javiercantero/streamlink,chhe/streamlink,wlerin/streamlink,wlerin/streamlink,back-to/streamlink,bastimeyer/streamlink,chhe/streamlink,streamlink/streamlink,beardypig/streamlink,gravyboat/streamlink,melmorabity/streamlink,melmorabity/streamlink,bastimeyer/streamlink,beardypig/streamlink,back-to/streamlink,javiercantero/streamlink,streamlink/streamlink