Hello Gokul,
The response time used in SMLG is read directly from the CCMS. If a value of 1- is displayed this means the load balancing is not able to read the response time from the shared memory of the monitoring. And indeed the CCMS shared memory is not available on the application servers.
To check the memory configuration of all instances using the command "sappfpar check pf=<instance profile>" and correct the configuration. After restarting the instances with a correct configuration the CCMS shared memory should be created correctly and the response time should be available also in the load balancing.
BR
Tamas