Thanks for the hint. I didn't think to profile. This may be useful, but I'm not sure how to interpret the results, which are:
- command-execute 15852 79%
- call-interactively 15852 79%
- funcall-interactively 15666 78%
- org-export-dispatch 15392 77%
- org-latex-export-to-latex 15291 76%
- org-export-to-file 15289 76%
- org-export-as 15245 76%
- org-babel-exp-process-buffer 14762 74%
- org-babel-exp-src-block 14676 73%
- org-babel-exp-do-export 10049 50%
- org-babel-exp-results 9324 46%
- org-babel-expand-noweb-references 9200 46%
- org-babel-get-src-block-info 8247 41%
- org-babel-params-from-properties 6799 34%
- org-entry-get 6618 33%
- org-entry-get-with-inheritance 6579 33%
- org-up-heading-safe 5466 27%