Hi @madeleine m thank you for posting in the community! I’m sorry for the trouble you are having with slowness in the Lucidchart editor and am happy to help.

There are a couple of issues that we consistently come up against with slowness. Do you mind reading through and seeing if any of these could be the cause of what you are experiencing?

• What browser are you using? Lucidchart is optimized for Google Chrome so if you haven't already please try the feature in that browser to see if it resolves the issue.


• Also try opening your document in a Chrome Incognito browsing session. This often improves performance by clearing your cache and cookies and disabling your extensions.


• Would you mind connecting to a different network or disconnecting from your VPN (if applicable) to rule out any connection or security issues?


• Having many page tabs large canvases on each tab and a high number of shapes on each canvas all increase the time it takes to load and update when changes are made. If you are working on a very large document you may consider breaking it into several smaller documents to improve performance.

Please let me know if you are still experiencing this issue after trying the steps above or if you have any questions!