Yep, that's how abusive they can charge. Sadly there is nothing you can do to it but to move to a cheaper exchanges link binance where you will have to also buy BNB for the trade fees. Make sense why there is huge volume to this exchange particularly because of this charges.
You can choose coins with lower fees. One of them is the NEO and the other is the XRP. Both commission rates are lower and faster than other coins.
There's a tip why XRP has bigger volume because its a way to make money out of it.