Connection Interval 's relationship with Data rate and power consumption

Hi

I noticed one ticket says that "the following combination offers low power consumtion and high througput when needed :Short Connection Interval + High Slave Latency + Long supervision timeout "

I try to study this in two nRF54L15 DKs, I will change the connection interval in 

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struct bt_le_conn_param conn_param = {
.interval_min = 320,
.interval_max = 320,
.latency = 0,
.timeout = 4000,
};
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

The result is like, where thee blue curve is throughput. the orange one is power. I notice there is no clear relationship.

Could you kindly give me some evidence that shows Short Connection Interval + High Slave Latency + Long supervision timeout is nice choice?