Are you having to deal with declining ability as you age? That's life and you'll have to deal with it at some point. In most competitions it should be about the competitor, not the equipment. But that doesn't seem to apply to some sports. The answer you are seeking can only be answered by you. You can work on your body, buy yourself some speed or even go beyond that. Maybe Low T treatments are in your future. See if you can get a TUE exemption. That should help you get faster. E bike could also help.
I remember a poster that no longer posts here that couldn't accept his declining performance as he got older. He could rationalize most anything if it kept him riding in the fast group.
