Help request for Read tags performance

[DagUd]

Hi, i'm new to Opc UA and I need a little help...
I'm testing h-opc libraries for read from a OPC UA server plc....

I'm able to connect to the plc, I can read the tags without problem...

I'm just facing the problem that when I read some tags with Read function, I must set a thread sleep (>100ms) between the reads or the OPC UA server stucks for a while (about 500ms) every program loop :

So for read the tags without stuck the server I must set sleeps between the read functions :

`Min_AngleLeft = client.Read(Of Single)("PLC.DataBlocksGlobal.VAngMinAct").Value
Threading.Thread.Sleep(PollWait)

Max_AngleLeft = client.Read(Of Single)("PLC.DataBlocksGlobal.VAngMaxAct").Value
Threading.Thread.Sleep(PollWait)

Min_AngleRight = client.Read(Of Single)("PLC.DataBlocksGlobal.PceLenMax").Value
Threading.Thread.Sleep(PollWait)

Max_AngleRight = client.Read(Of Single)("PLC.DataBlocksGlobal.PceLenMaxp").Value
Threading.Thread.Sleep(PollWait)
`

Is necessary to monitor the tags for avoid this problem ?

Thanks
DagUd