Hi there,
Thanks for reaching out. If I get your query, PDF created in Illustrator is freezing for 4-5 seconds while scrolling. If yes, I would request if you can share a few more details:
- Which application you are using to open PDF?
- What is the file size of the PDF?
- In addition to the suggestions shared by Monika, you can try saving the PDF without selecting "Preserve Illustrator Editing Capabilities". This option saves all Illustrator data in the PDF file.
PS: Please keep a copy of original .ai or .pdf file in case you want to edit it later.
Regards,
Srishti