Response time too slow when there is competition in the same connector PCo

Dear all, I'm having a problem with using PCo 2.1.

I created all the conections in PCo with OSIsoft PI and when I create a TagQuery

on MII to get the values of a tag is not occur problem in response time.

But when I have another TagQuery or Transaction, which is collecting data at the same

time, sharing the same connector, the time response is very slow.

Using the UDS this problem does not happen.

So problem is that when there is competition in the same connector, the response time is extremely slow.

Has anyone experienced this?

Regards!