In a peer-to-peer system, the more you contribute your network ressources, the more you get from others in return. However, it does not mean that you have to give all you have all the time.
With Safer, you can freely set freely your levels of contribution depending on the hour of the day, and the system will adjust to your requirements. It's very simple, you just need to set a percentage of resource usage for each hour of the day, from 0% to 100%.
This way, you can allow the system to use lots when you don't need the network, eg. during the night, or during working hours, and limit resource usage to the minimum when you need it for other purpose. You are the boss!