Sync takes to get done

Since I’ve uploaded the anking deck (3gb of volume) sync on my android device takes a lot of time to get done is there any solution to make this process quicker ?

Newer versions of Anki can synch your media files while you can use the app normally. Ankiweb server speed should be the limiting factor. The good news is that you will only need to upload media once. Donwloading to any other device will be much quickier.