Package check result: NOTE

Check: CRAN incoming feasibility, Result: Note_to_CRAN_maintainers
  Maintainer: ‘Marek Gagolewski <marek@gagolewski.com>’

Check: examples, Result: NOTE
  Examples with CPU (user + system) or elapsed time > 5s
           user system elapsed
  gclust 26.497  0.032   0.930
  mst    26.411  0.035   0.914
  Examples with CPU time > 2.5 times elapsed time
           user system elapsed  ratio
  mst    26.411  0.035   0.914 28.934
  gclust 26.497  0.032   0.930 28.526

No changes to worse in reverse depends.