Current use of fork may be unbecessarily slow

[racoltdev]

It may be worthwhile to swap to using vfork instead. Won't hurt anything to try it.

https://stackoverflow.com/questions/8368067/is-the-unix-fork-exec-sequence-really-as-expensive-as-it-sounds#8368167

https://www.man7.org/linux/man-pages/man2/vfork.2.html