Problem with routing table

Hello I have a problem with setting up the routing table the use case I have 4 node with batman batctl 2018.1 [batman-adv: 2018.1] on openwrt 18.06.1 2 nodes that serve the internet (connected directly with cable) when a node that shares the internet is dead the other node can't ping the internet unless the dead node no longer exists in its database neighbors (it does not appear in the results of batctl o and batctl n ) on average it takes a little more than 200 s to reconnect to the internet. my questions are: Is it possible to update the routing table faster? Does it have anything to do with 200s to detect that a node and dead ? thank you cordially faycel bhk