Slow Upload - Speed Decline and Standstill at 1MB

[patrickkdev]

I'm encountering an issue with the upload process in my application. Initially, the upload speed begins at a reasonable 129 kB/s, but rather than improving, it steadily decreases until it reaches 1MB uploaded. At that point, the speed abruptly drops to 0.

Have you had this problem? Can you help me solve it?

I tried uploading the same file manually through the browser and this didn't happen.