Isn't that the long and the short of it? Worldwide there just isn't enough to go round. I have no idea how badly, or otherwise, the UK have performed compared to others with regard to PPE supply, but I do know that I have repeatedly read about shortages in nearly every other major cash-rich Western economy.
France had a stockpile of 140m face masks. That put them in a position of looking well-prepared for a health service that used 4m per week on average. During recent weeks, they've been using in excess of 40m/week. That stockpile, that looked good for over 8 months was suddenly going to run out in around 3 weeks.
Agreed. The equipment simply cannot be manafactured quickly enough.