By the time of the Suez incident the uk hadn’t been the dominant global economy for going on 70 years. The second Boer war is probably a better example of shocking poor outcome for their empire by that timeline.

Queen Victoria was still alive at that point and ww1 was in the future. Even after ww1 when it was obvious the empire was severely diminished the English retained outsized soft power at least and had until the 60s for the empire to be truly dismantled.

Again, all this asserts "it takes a while", which I'm not contesting at all.