I did use the recommended setting in Bitcoin Core wallet. Is there a way to speed it up other than ViaBTC?
Depending on the size of the transaction you might be able to use confirmtx.com for free. Anything UNDER 500 bytes they'll accelerate for free... anything over that is $4.
When you say you used the recommended setting in Bitcoin Core... what was your "Confirmation Time target" set to?
Good point, I moved the bar towards "fast" until it changed for the last time. I checked back, that would've been 2,5 hours. Took 9 hours to even leave the wallet though. Not sure if my doing helped, but I'll save the website for later reference, thanks for that