Optimise data access on SIemens PLC

Good morning at everybody,
actually I’m reading data from different plc (n.9 S7-1500 and n.3 S7-300 ) dislocate on differents networks (and plants).

Total tags are 12000 tags .

All the tags are into the same scan class.
Networks performances to reach each plc are differents depending of traffic and delais.

In this condition , Do you think that is better create a dedicate scan class for each plc?


The only reason it would matter if you created separate scan classes is if you wanted to poll the data at different rates.