Subscribing and reading large number of tags. - by: yong

Hi
We are testing the performance of OPC Subscription.
I've looked at the following posts for some guidance:
However I'm still unclear what is the best approach for subscribing to a large number of tags.

Subscribing to a large number of tags slows it down.(SubscirbeMultipleItems(), 100K)
Is there anything I need to set to subscribe to a large number of tags?

The settings shown in the previous post are not available.

Thank you, and best regards