is there some way i can increase the upload speed for opera gx?

Because this feature is tucked away in the "Flags" menu (the experimental settings for Chromium -based browsers), it is not enabled by default. Follow these steps to activate it:

: It maximizes your internet potential if the host server limits the speed of individual connections.

: Locate the entry for "Parallel downloading." Change the status from Default to Enabled using the dropdown menu.