Can't recall any full 90s where I've felt like we have performed.
Unless you're in the bottom 3, I would think every other side has felt like they've pulled one of them out the bag and 100% deserved to win.
We've managed to put together strong 45s or 60s, but to be in December and not feel like you've deserved to win a game outright based on an all-round 8/9 out of 10 performance is shite.
I'm not saying it's an expectation either. But just once every now and then would be nice!