Unreal-Wwise Team work through Dropbox

Question

Hi there,

 

Just integrated Wwise to a fresh UE4 project and we are using Dropbox (I know, I know...) to share the project among the team members.

The project, as of the moment is fairly small (takes about 1GB) but the Third Party folder in the Wwise folder of the project is about 8.5 GB (!).

The game will be for PC, OS and console only so no mobile launch.

Is the Third Party folder necessary? Can I make it smaller so it won't take as much storage?