I had a raspberry pi model 3 B spear and thought what could I do with this.
I installed omsc and also added the Netflix add on to my sd card 32GB, the seller told me it is a pretty fast card 100Mb.
I connected it to my pretty old smart tv with hdmi cable. I use a official power adapter for my PI.
But when I try out Netflix I experience bad sound, also not in sync with video. Also after a while it buffers the video.
I do not experience this with my other smart tv with Netflix onboard, using the same internet conncetion.
Could the raspberry pi hardware I use be too weak ir do you guys see anything other as a reason?