How to increase streaming/download speed?

[jozeflambrecht]

Hello,
I am using this awesome package to download large datasets. The maximum download speed I have is 50Kb/s. When I look to the server resources, I am only using 20% of the CPU and 40% of the memory. Someone has an idea what the bottleneck could be?

Update: I was wrong about the CPU, usage close to 100%, memory stays low. I am chunking my data (1000), something I can do to lower CPU usage?