Suggest a letter or two to Pritti and Chaps mate
Between them the " taking back control of our borders" and late to the game COVID19 entry requirements (ever changing !) has resulted in the worst frontier experience in the developed world !
Blame Border Force if you like however they just don't have the manpower (nothing to do with years of funding and recruitment cuts !)
The use of e-gates is also difficult to manage with COVID19 regulations and paper work one would imagine as well.