Best Practices for routing

Im not sure if Im posting this in the right section but here gos... If Im trading in a London arcade Eurex products using stop orders (buys and sells) via Xtrader fix then when I send a stop it gos to the London TT hub where it is held and then it is sent to Frankfurt. It is executed in Frankfurt at the Eurex site there. Is this a correct assumption for me to make as to the probable route that it takes when it leaves my PC. Im not actually at an arcade yet so Im not totally sure as to the answers to technical questions such as these and cant ask the tech guys for help. What im really trying to ascertain is the best way to minimse the latencey involved in receiving quotes and sending orders. To this nd I was wondering if its possible to send my order to the TT hub in Frankfurt instead in order ot ensure less latency on the receipt of the quotes and the execution as well. Any technically minded people care to elaborate on how the order submission and retrieval actually works?