It's the same in all places lately, I used a VPN (for some reason I can change to other currency on their website) and I got a 7.7% even in RON and GBP.
And in Poland, they advertise 6.5% right now, the reality is actually worse.
Today you could sell with close to 0% fee (in other markets, too) and it was the buying fees which got jacked. Rates change depending on which way the market is going because they're said to have some banking problems.