110 ms is not faster than human perception. It's over a tenth of a second, and is very noticeable. The flicker fusion threshold for human vision lies in the 60Hz-90Hz range, corresponding to between 11 and 17ms. If I recall correctly, EEG experiments show differences up to around 100-120Hz, so on the order of 8ms. In any case, network latency itself adds on the order of 10ms per 1,000km of distance; 35ms or so for a London to New York round-trip, so the point about framework speed being a bit of a moot point other than in exceptionally high traffic scenarios still stands.
OK yes, it a literal sense you can see things that happen in less than 100ms. What I mean is that you can't tell whether the nominal amount of flicker on page load is from the time it takes to paint the DOM or from the network request. Unless you were asking a professional front end developer, I don't think most people would even have any intuition about what was happening.
