Any config to reduce time for Artemis 2.19.1 backup server to be active?

[Gunawan, Rahman (GSFC-703.H)[Halvik Corp]]

Any configurations to reduce the time for backup server to be active when 
primary (master) server was isolated from network?  During the test when the 
network card in primary Artemis server was disabled (primary server was 
isolated from network), it took 90 - 120 seconds for the backup server to be 
active.  We are using Artemis version 2.19.1.

Thanks

Regards.
Rahman