Note the date that these ships entered the Pacific theater, 1944. This was after the Japanese captured the Brit colonies and destroyed or ran out the ships the Brits had there to protect their colonies.
The US had been in theater since 1942. Now Wikepedia the battle of the coral sea, the battle of midway, the Marinnas turkey shoot, and all the other battles the US Navy had been involved in. The Japanese navy had no aircraft carriers left, their genius admiral, Yamamoto had been killed, most of their capital ships had been sunk, and the US had achieved complete air superiority by 1944. This British fleet was pretty safe.
Britains fleet had completely missed the big, decisive battles, and they were back to reclaim and hold on to the colonies they had lost ,primary purpose, if an invasion of the Japanese home islands was required, they would have been of immense help, but it wasn´t required. They got to the dance late, and it was pretty much over.
So just like you, we turned up late.