Slow Performance after change from 6.5.4 -> 6.7.4 (no replies)

Hi !

I write an applicatio which uses only some MySqlCommand / mySqlDataReader Code to execute some queries and get or store data.
With the connector 6.5.4 this worked nice and fast.

Now I switched from 6.5.4 to 6.7.4 and all is really slow now. I would say it´s about 50-100 times slower than before.

The queries I use are mostly very simple and not nested.

My connectionstring looks like this one:
SERVER=localhost;PORT=2804;USERID=root;PASSWORD=;PROTOCOL=tcp;POOLING=false;Database=myDataBase

So can anyone tell my whats the problem with 6.7.4? Btw. I switched back to 6.5.4 and all goes fast again ...

Greetings Dominik

Forget something ... I use MySQL 5.5.28 as local running server.