IPsec gateway changed old to new || tunnel up but performance SLA is showing down ||

Dear All.

I have S2S Ipsec tunnel with configured performance SLA from HQ to BR. due to some reason customer has changed ISP to new ISP.

So I have changed IPsec gateway old to new IPsec Gateway. When I changed IPsec using GUI. i has changed but we use command to check into CLI - get router info routing table details x.x.x.x. 

Here still showing Old IPsec Gateway. but in the GUI it is showing changed.

S2S Ipsec tunnel are showing up, I have changed only Ipsec Gateway. even after showing IPsec tunnel up Performance SLA is showing down. Can you suggest also why Old Ipsec gateway is showing in CLI tunnel interface.

Let suppose old Ipsec gateway was 1.1.1.1 and I changed it 2.2.2.2 thats it.

thanks.