Hello!
Bitbucket mentions that the size of the repo is currently 4.78 GB of 4 GB. When cloned, the repository weighs less:
count: 0
size: 0 bytes
in-pack: 38024
packs: 1
size-pack: 1.14 GiB
prune-packable: 0
garbage: 0
size-garbage: 0 bytes
Can you please run git gc for the remote repository?