Running slow when an invoice has been created, takes ages to save it

Thanks for posting here today, @info-purelypesto.

I'll share the steps on how to make your QuickBooks Online (QBO) run quickly. Since QBO is browser-based accounting software, you'll want to start the troubleshooting steps by access your account using a private browser or an incognito window. This mode doesn't use the existing cache data and helps us confirm browser-related issues. Here's how:

• For Google Chrome browser: Ctrl + Shift + N
• For Mozilla Firefox browser: Ctrl + Shift + P
• For Safari browser: Command + Option + P

After that, try saving an invoice again. If it works, go back to your regular browser and clear the cache to delete those temporarily stored files and browsing history. The overtime collection of data can create corruption, however, removing this should fix the issue. 

Additionally, using a different browser is the other way to make QBO work a little faster. Google Chrome, Firefox, and Microsoft Edge each may work perfectly with QBO. Refer to this guide for details: System requirements for QuickBooks Online, Accountant, and QuickBooks Self-Employed.

I'm also attaching this link here in case you need help with other customer-related tasks. Just look for responses that fit your concern.

• Topics about your company's income and customers.

Don't hesitate to reply to me anytime if you still have questions or concerns with invoices. I'll be around for you. Take care and have a good one.