If Lotus Notes is taking too long to open emails, it might be due to a large NSF file size, fragmented data, indexing issues, or background processes running on the server. When the database grows too large, Lotus Notes struggles to process and display emails quickly, leading to sluggish performance.

To speed up Lotus Notes, you can try the following:
✔ Compact your NSF file using the built-in “Compact” tool in Lotus Notes.
✔ Delete unnecessary emails and archive old messages to free up space.
✔ Disable unnecessary add-ons that might be slowing down the client.

If performance issues persist, consider using eSoftTools NSF to PST Converter Software to split large NSF files into smaller, manageable PST files. Converting your data to Outlook (PST format) or exporting it to MBOX or EML formats for Thunderbird or another email client can provide a smoother and faster experience.