Changing DNS did not help me
Well, after reading multiple posts about changing DNS settings, I ran the benchmark tool to find the fastest DNS. Changed it and it did not make one bit of difference. YT still crawls on iPad. This guy confirms that changing DNS settings does not help (apparently it helps some and not others).
He says about this problem:
Your DNS settings are wrong: the DNS lookup is taking too long and by switching to OpenDNS or Google’s (conspiracy theory alert) DNS everything fixes itself. This makes no sense during video buffer (DNS lookup is complete) and does not explain why other devices don’t have this issue.
Bingo....did not help me at all.