Throttling
This is one of the means to control how much the system is burdened by the transfer of historical data.
The Throttling property
yields another fragment of CPU time after each tag data transfer. As this occurs with each tag, there is a dependency on the number of tags that are added to the
Tag Configuration table. This should be kept in mind before using the property as a control mechanism as the throttling will increase considerably when making data transfers for large numbers of tags