There's a cap resulting from CPU limiting I set for the downloads. It's a tradeoff between download speed and UI performance.That's a cap on pnd manager I believe not the repo bzar could answer that.
The responsible line is here. Making that sleep smaller raises the download speed while degrading UI experience. On desktop you can put that sleep to 1ms or smaller and have full DL speeds and full UI speed, but on pandora I had to make a compromise there