Thanks for your help.
I had already checked the ethgasstation website, but I was just wondering why do we have to set a 97 Gwei price to run the bancor smartconract all of a sudden. The Ethereum blockchain is apparently totally overwhelmed since 48h. Let's hope it won't rise up again to 1000 gwei or God knows what in a month ... It would neither be good for the Bancor project nor the entire Ethereum blockchain if running smartcontrats becomes so expensive.
It should goes back to normal once Casper will be activated. At least that is the plan

Anyway, besides eth network congestion, looks like the most tokens on Bancor are on the rise along with BNT, and volume on the platform is going up. Can't wait to see limit orders implemented, and the rest of tokens activated.