Definition of sweet spots:
(n) :
Any place that is optimal for obtaining a certain desirable effect or result.
(n) :
(figuratively) Any set of conditions that is optimal for obtaining a certain desirable effect or result.
(n) :
(sports) Any of several places on a bat, racquet, etc., with which to hit a ball, resulting in the latter rebounding with some optimal desirable effect, such as minimum vibration or maximum velocity.
(n) :
(slang, euphemistic) The clitoris, prostate gland, or other internal center of sexual pleasure.
(n) :
(extended reality) The spot of a lens in where image clarity is perfectly clear and sharp.