recently more and more isp limit or downgrad their packages because users dare to use it to the limit. unlimited for you aint the same as unlimited for your isp wink

50ms latency/ping you barly get if you are honest. most of the times you play wiht 100ms+.
ontop of that put rendering time on ther servers, then the compression, then the packing and sending, then you receiving, then you unpacking and displaying. and all of that in hd and 50pictues a second.
no matter how good your codec is, none works without buffering. most of the times you wont recognize it beacuse its just a few ms. but i bet you will once you have a latency limit.