So I have a pixel 2 XL and I can attest for the camera taking upto 3s to load on average. This has been progressively getting worse with each OS upgrade (no way I am upgrading to the "AI" OS). My iPhone 3GS actually ran for a good 5 years and though "hot" apps werent fast, the default apps were as zippy as they were the day the phone was bought. Somehow Google doesnt seem to care about this!