Not long ago I was thinking the same when I looked at the average playtime of gamers on "How long to beat" (it usually takes me twice the time they post there and I just hit 50 last year). Then I noticed that others consider diving into a game and playing the hell out of it no matter how long it takes to be much better than simply rushing through the game (might be different in the speedrun scene but that's a special case ;)). So I decided for myself that whenever I play a game it will take as long as it takes. Because of time constraints sometimes it happens that I install a game in one year and finish it years later ... I doubt you can beat this :) In the end I DID beat it and I enjyoed it - that's the main thing that counts - nothing more. So you should simply do the same. Enjoy your games.

Find a legit bee herder, whom you trust and doesn't adulterate his/her products. Buy royal jelly and start a treatment (usually lasts 1 month), taking extra care to abide by the indicated dosage carefully (ultra special, mini spoon) and to imbibe it before eating anything else, first thing in the morning.

Buy fresh bee pollen too. Instead of sweets, you eat 2 teaspoons of it daily. If you get accustomed to it, slowly raise the dosage to two tablespoons per day.

Those are perfect augmentations not only to health, but to physical condition overall and help you a great deal in various tasks; from reading, to concentration, to faster perception, to slightly better reflexes, all the way to regular workouts and fatigue evaporation. Physical or mind strains become much more tedious and you can suddenly catch yourself doing things, for at least triple the time that was your limit before, s_x included.

Martial Arts aren't needed. Only muscle reflex, stretch and conditioning drills from a martial art's introductory, session-starting sets. Ideally the ones from Taijutsu work best, that are very gentle&relaxed and involve slight massaging first, not stiff, never with pressure.

I feel like this is more about pride or midlife crisis more than anything else. I noticed he hasn't responded since, though. He appears to desire the ability to compete with the young whippersnappers, rather than focus solely on the game. Either way, if he does come back, my offer will stand. It usually actually isn't what everyone thinks it is, which is why it always takes a while to solve it. Experience with helping people with various "cognitive issues" in games or skills like programming tells me that 9 times out of 10, it's coming at a problem from the completely wrong angle. Take fighting games, for example: people usually approach fighting games as making the other guy's health bare go to 0. They don't consider the idea is about keeping your health bar higher than thers when the timer runs out. The difference between the two mentalities is HUGE and has a great impact on skill level. Having people readjust their approach usually makes them much better much faster.

Learning the inputs of the moves is just the beginning in the grand scheme of things. What really separates a players' skill level is the ability to effectively apply those moves in a match. That means take into consideration timing, spacing, your opponent's habits, and risks/rewards for using certain moves. Throwing moves without thought will leave you opponent against experienced players.

Fatalities in Mortal Kombat are flashy, but they only serve as a reward for winning rather being a tool to help you win in the first place.

The OP was unclear whether it was about reaction speed relevant for certain games or if it was about (human) competition. If it's the latter... I can't relate.
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Actually, they're there for trolling your opponent. To add insult to injury .doesn't really have this effect, anymore, thouugh.
This post heavily compares the poster to others, whom he views as better than him. I doubt he honestly feels he needs the reaction speed at all costs. He finds himself lacking. He's clearly worried about how he compares to others.

Practice makes perfect!

Watching my son play Rayman or Bit.Trip Rubber is so fun for me. He can see and react to events way, way faster than I can. He moves as a blur. I try to play with my kids, but I can't up.

But if I play a game with more strategy, even if twitch can help, I can keep up. Battlefield vs Call of Duty, for instance. I can't play Call of Duty anymore. But I can make my way around in Battlefield because most kids don't understand the strategy. I don't either, but my little brother does (mid-30s) do I just follow him. :)

Games like Civilization, Kerbal Space Program, dungeon crawlers of slower pace, RPGs. All of those still hold up n in my middle age.