How do you rate Sri Lanka's Sheer pathetic performance yesterday?

I will rate it as poor performance. Same team made 400 runs in first inning. In second inning 82 runs. It clearly shows that they failed to handle their nerves in pressure. I will not say it was shameful cricket because all bad things happened only in second innings. Everything was sweet and normal till first innings. But when Sri lankan team got a target of time to stand on crease they collapsed like cards. I will include it in standard of international cricket but weak international cricket. It happens(but rarely)