Britain wasn't exactly 'losing hard' overall in the Napoleonic Wars, given that it was the beginning of the end by 1812; with French power starting to crumble in all of their various conquered areas. It took until 1814 for the collapse to be total, though.
I realise, the point is that the POD would really need to be wanking the French signifigantly to give them an advantage in the war thus distracting the English much more.