TVOS high cpu load when decoding interlaced h264 video

in Russia, most tv channels are used interlaced frames...but when it play on AppleTV CPU loaded is up to 60-70%, so the picture is not going smoothly. This is especially evident on HD channels

its test stream: http://itv.g-service.ru/live/KHL_HD.m3u8?authkey=4ffbf909-bbb0-9c34-73c6-6f2110cca64a

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