I guess you already are aware, but just in case:

Some package builds include files that are >5MB, triggering some CRAN NOTEs.

Please check: https://cran.r-project.org/web/checks/check_results_DT.html

https://www.r-project.org/nosvn/R.check/r-oldrel-macos-x86_64/DT-00check.html