Package check result: NOTE

Check: examples, Result: NOTE
  Examples with CPU (user + system) or elapsed time > 5s
                 user system elapsed
  cla_xgboost 117.225  0.272   4.675
  Examples with CPU time > 2.5 times elapsed time
                 user system elapsed  ratio
  cla_xgboost 117.225  0.272   4.675 25.133

No changes to worse in reverse depends.