Claiming something is "false" doesn't make it false. It's the combination of muscle strength, muscle density, speed, and reaction time that will never naturally be higher. You might throw punches a little faster at age 24 than you do at 32, but that's likely because you're carrying less muscle mass that is less dense. Do you think I meant speed as in sprinting ability? Here's a quote from me months ago explaining the same thing:
You think I'm just now starting to "put focus" on endurance because I've only "just started" to do some research? Buddy, here's another quote from me, in this very thread, from months ago:
You want me to find you a scientific study that reports speed and reaction time only? How about you show me something that refutes what I've been saying? Show me something that says a man's physical prime is 25-30 and that after 30 they decline physically? You really can't, because it's not true. The physical declines typically start in the late 30's. Some studies say that muscle strength peaks at 25 and can hold until your 50's. It plateaus. Add in the density that starts in your late 20's - early 30's, the cognitive abilities (such as reaction time), experience, and the ability to hold onto your muscle mass/density - you have your prime.
Here's an article that may help your understanding:
Aging and Athletic Performance - training, exercise, strength, muscle - World of Sports Science (faqs.org)
Here's the most relative paragraph (oddly enough the first one) that shits on what you've been saying:
There are certain immutable truths concerning the performance of the human body as it ages, particularly as the athlete reaches age 40.
The physical peak for most humans, in most sports, is between 25 and 35 years of age; during this peak period, the well-conditioned athlete can create a confluence of
muscular strength, peak cardiovascular and oxygen transport, speed and reaction time, and mental capabilities (including the ability to deal with competitive pressures), all bound together by a desire to succeed.
There's also a nice section about endurance athletes that's almost identical to what I said:
Since 1950, the average age of world champion distance runners in the 3-mi (5,000 m) races through to the 26-mi marathons (42.2 km) ranges between
28 and 32 years of age.
From this peak of ability, runners will continue to perform at levels close to their personal best into their late 30s and early 40s; performance then declines at a rate of approximately 2% per year through age 80