It was a genuine question. Because your post was in regards to what was happening in the conflict itself I assumed you were comparing the UK's military aid rather than humanitarian. As far as I'm aware the UK has supplied large amounts of military equipment, medical equipment and monetary sanctions. Maybe not as much as the EU but as a single nation I think we have done our bit in that regard and I don't think we have been slow to act either.
https://ukdefencejournal.org.uk/britain-sending-more-weapons-to-ukraine/
The Prime Minister said:
(before the invasion started)
“In light of the increasingly threatening behaviour from Russia, and in line with our previous support, the UK will shortly be providing a further package of military support to Ukraine. This will include lethal aid in the form of defensive weapons and non-lethal aid.”
The UK has already sent anti-tank weapons to the Ukrainian military to help counter Russian forces. Last month, the bulk of Britain’s C-17 transport aircraft fleet was involved in carrying thousands of
NLAW anti-armour systems from Britain to Ukraine.
With regards to humanitarian issues, you are probably correct but I don't know what other countries in the EU are doing themselves. Countries closer to Ukraine would surely be the first destinations as a place of safety? As long as they are being cared for and we are allowing families to join each other in the UK then what is the problem? As I said it was a genuine question, I don't have every bit of information.