It is interesting looking back at the times when my "active interest" (not obsession) in internet speeds has waxed and waned.
When I last had DLM intervention, I said b****x, watched the data for 2 days, then went and got on with life. It sorted itself out after a month, and I never noticed.
In 1994, internet access was a fascinating, interesting hobby.
In 2000, 2Mbps ADSL was fascinating, but the real change was that it made work from home possible.
In 2011, the switch to FTTC was engrossing, but mostly about the politics of the rollout. Not the speed itself
Somewhere since about 2009, internet access (and the broadband that made it easy) has become a tool. It just works - for work, entertainment, shopping and social stuff - and I concentrate on other things.
The last 2 times we moved house, broadband grabbed a lot of my attention - to make sure we got sufficient speed when we arrived. Once there and working, it slips off the "todo" list, back to being a useful tool. It gets about the same amount of attention that I pay to having a car - ie attention only when it isn't working!
If we started to lose speed now, I'd be concerned ... but that would more be because of the question as to whether it portends a complete outage, rather than for the small loss in speed right now. My first steps would be to make sure our backup option (4G) was working correctly.