Some users have noticed that current versions of OCRmyPDF do not run as quickly as some older versions (specifically 6.x and older). This is because OCRmyPDF added image optimization as a postprocessing step, and it is enabled by default.
If running OCRmyPDF quickly is your main goal, you can use settings such as:
--optimize 0to disable file size optimization
--output-type pdfto disable PDF/A generation
--fast-web-view 0to disable fast web view optimization
--skip-bigto skip large images, if some pages have large images
You can also avoid: