Time delay and resolution issue in LabVIEW LockIn Frequency Sweep

[EKANSH_CSIO]

Hi,
I was using the LabVIEW LIA Frequency Sweep VI by moku in a testing sequence.
1)The time delay between each step is more in respect to that specified in the loop. How can I reduce this time delay.
2)How can I increase the resolution of the graph upto 1Hz as that is the need.
3)Also the amplitude is getting saturated at that level it should be showing peaks.

I have attached the VI AND snap shot below, for your refference.

Waiting for you kind response,
Thanks.