Daniel Compton recently performed an analysis of the State of Clojure 2016 free text comment portion. A section of his analysis is devoted to complaints about startup time, which I frequently see elsewhere. And, in my experience, it's true: Clojure, when started with Boot, takes much longer to start than other comparable dynamic language build and dependency management tools.
For example, starting Ruby's
irb console with Bundler, using the command
touch Gemfile && time bundle exec ruby -e 'exit 0', takes 0.4 seconds on my
time boot -B repl -e '(System/exit 0)' takes 6.9 seconds.