I have a Linux build server that I frequently download from and I have noticed that the .tar.gz files have download speeds approximately 3 times faster than .zip files. However, to my understanding the file types really shouldn't make a difference in the download speeds.
So here are some details that may be important, I don't know.
file1.tar.gz, size = 438MB, as file is downloaded the file size is known by download manager
file2.zip, size = 195MB, as file is downloaded the file size is unknown by download manager
Why would file1 have download speeds of about 2MB/s and file2 have speeds of about 500KB/s from the same server to the same computer?
It doesn't matter if they are downloaded at different times or the same time, or if one download is started before the other.