Is being good at mathematic contests necessary to pursue a career in mathematics or physics? [closed]

I am extremely poor in solving a problem quickly, which leaves me doing badly in olympiads and other contests. But, if I just don’t give up on a problem, no matter how much time it takes, I usually end up solving it. To have a future in mathematics or physics, is it necessary for me to excel at contests, because these days children excelling at contests have an advantage over those who don’t (not complete advantage, but advantage nonetheless)?

Mathematics takes place at different time-scales. If you can solve a problem in $5$ minutes that others need an hour to solve, you can probably get a good job. If you can solve a problem in a month that others might need a year to solve, you will probably do well as a graduate student. But if you can solve a problem in $10$ years that nobody else can solve in a lifetime, you could be a great mathematician.

It's nice to have awards from contests on your grad school, etc. applications (and it's something to be legitimately proud of), but they have little resemblance to what mathematicians or physicists do in practice. Math is about solving very complicated unsolved problems with months or years of hard work, clever insights, and building off results in the literature; contests are about solving very short contrived problems from scratch with elementary tools under a severe time contraint. It's like asking whether solving crossword puzzles is necessary to be a writer.