Hello, 

The speed, the game needs to improve the environment (rocks, textures etc) this could be why it is perceived as slow. In a future version will increase the speed.

I already check  it and the problem is that when you drop the space cargo it sinks, because it  does not detect the colision,

by correcting a bug in the craters, the Box Collider was disabled, I have corrected but I can not upload it again. I'll be uploading it again once the Jam has finished.

About your doubt it is necessary to drop the load and after activating the base I leave you some screenshot.

Then recover the devices

And take them to the base

thank you for the time you dedicated to test the game. 

Regards.