Uploading large Files

I love that this plugin can be used with sweet custom dashboard. I can upload small files and receive a success message. However, large files seem to upload, but the progress bar stops at the end and never completes. The file does not show up on the server. Can someone explain how to overcome this problem?

There are several other unresolved posts about this:

https://www.ads-software.com/support/topic/plugin-inline-upload-uploading-of-bigger-sized-files-will-not-work

https://www.ads-software.com/support/topic/plugin-inline-upload-working-great-but

https://www.ads-software.com/plugins/inline-upload/