Below is a comparison of LTE and NR max throughput that can be achieved.
Theoretical peak of NR FDD performance (SA)
Having this table in mind I can’t understand the benefit of DSS apart from 5G icon on the screen!
The advantage of 5G versus 4G comes from beamforming gain, MU-MIMO spatial multiplexing basically from AAU features. But for classic antenna with 4x4 DL mimo I really can’t see a benefit of DSS apart from 5G icon on the screen.
Looking at the above table I fail to recognize how DSS will improve cell capacity once activated.
But indeed for the sake of 5G icon on the screen DSS is good.