You can activate compressions by selecting a value from the compression drop down.
The compression setting can be found by selecting SETTINGS -> NETWORK on the left hand navigation window.
Select your preferred compression setting in the drop down box provided.
Compression will be applied on the received files. Each device that needs received files to be compressed must set the compression on their device.
To activate compression on received files, specify a compression level value, from 1 to 9. The compression level, defines how rigorously the compressor attempts to compress the file.
In general, compressing at the maximum level (9) requires around twice as much processor time as compressing at the minimum level (1);
For typical textual input, compressing at the maximum as opposed to the minimum level adds around 5% to the compression ratio.