If your PST files have become too large, there's no need to worry. I recently used DataVare Outlook PST Compact Expert Software, and the results were amazing! This tool compressed my Outlook's huge PST files in minutes, without any data loss. This tool is user-friendly, fast, and significantly improves Outlook's performance. If you also want to increase Outlook's speed, then definitely try it.

Benefits:

Reduces the size of large PST files

No data loss

Improves Outlook's speed

Compatible with all Outlook versions

It helped me a lot, you should also try it!