Realising how slow I really am on a bike now

I was never particularly quick on track (the straights were my issue, fast in corners dog slow on straights

) but on the road there weren't many that could pass me!!
The last few days too many people have caught up with me at a pace that meant I waved them past
My physio made the usual comment that it's 'just getting old'
I'm realising that it's, sadly, self preservation, also a bit that I'm on a borrowed bike

But, I don't want to ride too fast as I don't want to fall off

Well, actually, more to the point - I DO NOT want to damage the metal shoulder OR the 'good' shoulder!! bloody wuss!! LOL
I ride very comfortably, just not very fast

With luck I can improve once I have my own bike again.
But right now?? It's just bloody depressing (well, not when I'm riding, that's joyous!)
Just the realisation when I get home that I'm now slow is miserable
