[MENTION=125526]Nva1[/MENTION]! That has more to do with DNS configuration, not with your connection speed. Besides, "YouTube" streaming have always sucked bad in Pakistan. This is not a news.
[MENTION=1262]dockash[/MENTION]! Hopefully you won't face much problem if you are on ONU. Otherwise, you may face Random Disconnections or Random "Not Responding" issues (internet would remain synced but would stop transferring bandwidth, and all downloads/uploads will go to a full halt). You will have to lodge a complaint for your Phone Line (PSTN) from myPTCL to get it fixed.
[MENTION=57463]shariqhere[/MENTION]! SNR is being counted in 0.1dB. So your actual SNR is 43.8dB, which is pretty damn good. Its not 400.