
Hypnosis for pure mentalism is different (when you are not explicitely telling people that you are using hypnosis). This is where you might want to complement your mastery of the basics with some NLP books such as the one given by an other commenter (or Steven Heller's "Monsters and Magical Sticks"). Note that a lot of NLP is not evidence based but you are fine if you keep with the founder's work on hypnosis.
(fun fact, I got started in hypnosis with some hypnotherapy books)
Learn (self-)hypnosis. "TRANCE-formations" by Bandler and Grinder (and Bandler's other books as well) and "Monsters and Magical Sticks: There's No Such Thing as Hypnosis?" by Steven Heller.
Robert Anton Wilson's books are pretty good too. Also "Angel Tech: A Modern Shaman's Guide to Reality Selection" by Antero Alli.
To develop hyper-cognition study hypnosis[1]. To develop the second kind you could try "Core Transformation' process[2].
They are old but check out "Superlearning 2000" and "Psychic Discoveries Behind the Iron Curtain" both by Sheila Ostrander & Lynn Schroeder
[1] I can recommend "TRANCE-formations" by Bandler and Grinder and "Monsters and Magical Sticks: There's No Such Thing as Hypnosis?" by Steven Heller.
"Slow is smooth and smooth is fast."
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Someone hasn't tried hypnosis...
Your conscious mind has very limited capacity, yes, but your unconscious mind has much much greater capacity. You can learn to think with your whole mind and develop preternatural speed (as well as a bunch of other cool capabilities, like being able to induce catatonic trance in just part of your body, enhanced memory, etc.) This takes the form of fast reflexes (a mug gets knocked off the table but you catch it before it hits the floor) and reduced susceptibility to surprise. Additionally, you can tap into the unconscious mind and "offload" thinking, as it were. For example, when playing chess you don't have to think about it, you "just know" which moves to make. The thinking is still happening but it's unconscious so, like all unconscious processes (by definition), you don't feel it.
Anyway, I have no real idea why hypnosis isn't more widely studied and practiced, but using it it is certainly possible to increase your thinking rate. FWIW, the hypnosis books I recommend are: "TRANCE-formations" by Bandler and Grinder, and "Monsters and Magical Sticks: There's No Such Thing as Hypnosis?" by Heller.
