Slowness in Multisite

I have Configured the “TCP Port connect to 6557” of all slaves as active check.
Configured Site configuration, Host check command to active check of respective slave.

Still the response of the multimaster is very slow. (But yes, it is better than earlier)

I have observed, some of slaves are UP and able to Telnet on port 6557 but livestatus query is taking longer time to respond. So Check_mk waits for (30 Sec) Timeout settings of respective slave in site configuration.

Is there any way to improve livestatus query response ??