Fat is a huge performance killer, there's no debate on that one. The lower, the better, for performance. I find a number under or around 5% of total calories works best, naturally if mileage is significantly higher than normal then a number nearer 10% is sometimes achieved, but that comes with the additional carb calories consumed, no overts necessary.
Dairy does nothing beneficial performance wise, all it's been proven to do is clog the *f##k* out of our respiratory and lymphatic systems. When I drank milk, I used to have difficulty keeping a tempo and breathing deeply when needed. I had no idea how much unnecessary mucus I was carrying around and how much it all affected my breathing. In all honestly, my chest just felt different when it was no longer a part of my diet.
The protein found in eggs is second to dairy in how it affects these things, so stuff like scrambled eggs or an omelette is actually a poor choice in my opinion, there will undoubtedly be asthma-like symptoms from eating this gunk, which I myself only noticed when I removed it from my diet.
Then there's meat, which, in all honestly I don't see why any cyclist would want to eat on performance grounds. Aside from the fact it sits in our guts for days trying to digest, which is probably the most basic performance killer (that's valuable blood being used for digestion that isn't going to your legs), the inflammation that animal protein causes is ridiculous... arteries stiffen, our blood floods with toxins and endotoxins. Aside from carrying all the extra weight up every climb with us, it's a surefire route to poor performance as the entire body reacts against what's been put into it.