proxy london 4 ,slow?????

Hoi .

I am trading from the netherlands near amsterdam.

Ctrader connect me most of the time with london 4 or london 5.

When i am connected to these i am always having problem with a slow patform .of course mutch slippage .

When i am on proxy amsterdam ( near my home ) or on frankfurt ,i dont have any problem .

Than it is very nice to trade with ctrader.

Does somebody knows how i can make sure than i am trading on the   amsterdam proxy????

My broker can not help me the say!??

Does any body else having this problem???

Sorry for my english haha