painfully slow uploads

Hi Sarah, 

Welcome to Box Community! 

To fix your slow uploads issue, please try these troubleshooting steps.

• Please ensure your web browser is the latest version of Internet Explorer, Safari, Firefox or Chrome.
• Try clearing your browser's cache. If this does not resolve your issue please proceed to the next step.
• Verify that you are using one of our recommended operating systems.
• Try uploading using the File upload method instead of Folder upload, or vice versa
• Check your network connection to Box. If connected to the internet with a wireless card, check to see if the connection to the internet drops intermittently. If this is the case, we recommend the Folder upload method.
• Try temporarily disabling or configuring your firewall to allow Box as a trusted site. You may find that your anti-virus software includes a built-in firewall. If you are attempting to access Box from an office setting and experience upload issues, then please contact your IT administrator or internal Help Desk.
• Proxy servers may sometimes cause failed uploads. If you see the error message: An error occurred with the upload. Please refresh the page and try again. Please contact your IT department or Help Desk and ask them to check your proxy configuration.

There are also contributing factors that slows down your upload on Box. Please refer to this article for the details.

Please let us know how it goes!