[Bug] Extreme memory usage when using large (≥50mb) files

[olessavluk]

Current behavior:

When uploading large files:

• 50MB memory usage goes up to 3GB usually cause CI to kill process and fail
• 100MB just fails, see screenshot https://i.imgur.com/Ec2c6ro.png

Desired behavior:

Memory usage should not be "much larger" than file size

Steps to reproduce:

Clone this fork and follow usual instruction from readme