Hi, I recently using Perfect IPTV for along time with my mibox running 6.0. Comparing with Live Channel, it more better, nice image, anti aliasing and no drop frame.But yesterday, when my mibox updated to Oreo, the quality image of Perfect iptv became really bad, it has aliasing and some stuttering motion. I tried changed all options in Decoder playback : only SW can show good quaility image and anti aliasing but it very laggy, delays every 3 second. Another option Auto, Native, Hardware and HW+ have the same bad quality i had mentioned above.
I also tried with another IPTV app with MX player or VLC player, the quality still bad. All of them have had good quality image on MM 6.0.
Chatting with Perfect Player IPTV support, they said this issue come from Xiaomi not them.
P/s : I had factory reset more than 2 time.
Here is the different between 6.0 and 8.0 oreo.
Have you checked display settings in Oreo itself?