that is strange but with more ,the same ,tests i have no more speed up:
with Racket versions of srfi 171
{unified-minterms-set-2 <+ (filter (λ (x) x) unified-minterms-set-1)} ;; remove #f results
;; (nodebug
;; {unified-minterms-set-2-length <+ (length unified-minterms-set-2)}
;; (dv unified-minterms-set-2-length))
{unified-minterms-set <+ (remove-duplicates unified-minterms-set-2)} ;; (remove-duplicates-sorted unified-minterms-set-2)} ;; uniq MODIF
;; C12 in Terminal mode with MacOS Ventura M1 and 32"
;; (nodebug
;; {unified-minterms-set-uniq-length <+ (length unified-minterms-set)}
;; (dv unified-minterms-set-uniq-length))
;;{unified-minterms-set <+ (remove-duplicates (filter (λ (x) x) unified-minterms-set-1))} ;; C12 in Terminal mode with MacOS Ventura M1 and 32"
;;{unified-minterms-set <+ (list-transduce (compose (tfilter (λ (x) x)) (tdelete-duplicates)) rcons unified-minterms-set-1)} ;; C12 in Terminal mode with MacOS Ventura M1 and 31"
and Guile:
;; 8'04" MacOS Ventura M1 for C12 ,50" for C11
;;{unified-minterms-set-2 <+ (filter (λ (x) x) unified-minterms-set-1)} ;; remove #f results
;; (nodebug
;; {unified-minterms-set-2-length <+ (length unified-minterms-set-2)}
;; (dv unified-minterms-set-2-length))
;;{unified-minterms-set <+ (remove-duplicates unified-minterms-set-2)} ;;(remove-duplicates-sorted unified-minterms-set-2)} ;; uniq MODIF
;; (nodebug
;; {unified-minterms-set-uniq-length <+ (length unified-minterms-set)}
;; (dv unified-minterms-set-uniq-length))
{unified-minterms-set <+ (remove-duplicates (filter (λ (x) x) unified-minterms-set-1))} ;; 59" for C11, 8'05" for C12
;; 7'08" ,8'15" MacOS Ventura M1 for C12 and 56" for C11
;;{unified-minterms-set <+ (list-transduce (compose (tfilter (λ (x) x)) (tdelete-duplicates)) rcons unified-minterms-set-1)}
some code is commented because i only run one test at a time.
I suppose the speed up was only because debug mode slowed down other code but perheaps my test are not reliable, i can only explain some slow down now due to CPU overloaded by another process in the system at different moment in tests. I have no idea how to perform more reliable tests.