performance when play to chromecast

hi i have this problem.
whem i play a movie to my chromecast it need to buffer all the time even if i have on the lowest quality
i have plexserver on pc and use my iphone to choose movie and send to chromecast.
this started 2 weeks ago and its on every movie,i dont change anything

any suggestions on this

This is been hapening to me also. In the past there were no issues. Since 2 weeks I’ve been experiencing alot of playback issues. Something with the transcoder I guess?

can be
think if its a update problem but dont know when last update was.
i can play directly to my phone and on the computer without problems