Site-to-Site auto VPN is working very slow

[Ali4]

i have created sit-to-site VPN on meraki64. but it has very slow throughput.

will someone suggests optimizing the throughput and speed. 

[PhilipDAth]

How are you measuring the speed?

Slow doing what?

Is this AutoVPN or a non-Meraki VPN?

[Ali4]

Initially we were accessing one of remote office server through VPN client, now we have implemented AutoVPN between Meraki's devices in order to bypass VPN mechanism for our local office.

Now we are facing much delay to access that remote server through AutoVPN.

i have put VPN traffic on 100mbps ISP (on high ISP). On remote side we have 20Mbps. but still need good traffic reshaping to reduce the delay. 

will you plz give suggestion?