If you do not like the Avios website, you can use BA.com instead. Just create an account at BA.com and transfer your UR points there instead.
Cost/availability should be the same (once upon a time BA.com was cheaper, but they closed that loophole)
I was looking at this a few weeks back on DUB-BCN rtn. BA had higher fees for same avios (€80 on ba.com and only €30 on avios.com). So need to double check the pricing on your routes just in case.
Double checked there and images below show the example. This may be isolated and route or date dependent, not sure as I haven't checked too widely but just to be wary.
DUB-BCN avios.com
DUB-BCN ba.com