Why icedrive download just a bit, stop and resume per file

i have seen that icedrive in the UI and in my download windows in case i am using it as an external drive, i have a huge file like 10 gigs, and i can see in the UI that is downloading, but just every few seconds will stop you will see the progress bar disappear, the file stop downloading and then 10 seconds later will resume again… i notice that ice drive does this ALL time for ALL the files, why is that? why doesn’t just download the file with no interruptions?

you can also see the speed of the download in my case will go from 0 to 2 megs download speed, then 10 secs goes to zero, then start to ramp up again later on with a few bytes download speed, till peak again 2 megs just to stop again… i was expecting to see download spead average of 2 megs ALL the time, not few seconds here few seconds there =(

in this screen i see download and then for a second all goes away and nothing show that is download

here i have the screen of freefilesync downloading


and here is where just stops

and does it every 5 to 10 seconds more less…

is this the normal behavior? i am using the latest version 3.62