Well we did go from top performer to bottom as a result of Brexit I think didn't we?I will say if we are after national examples of economies performing better than the U.K. over the last 10 years under George Gideon Osborne (your preference to Cable) and Phil Spreadsheet Hammond, at this point it's the whole G7 with a bunch of other interesting cases.
Something not working for sure!
https://www.libdems.org.uk/uk-growth-now-highest-in-the-g7