We have a repository that use LFS, and fetching the objects managed by LFS is becoming slower and slower. Switching to a branch downloads the LFS objects, and while I have 73 MBps of bandwidth between my computer (MacBook Pro mid-2014) and our GitLab CE server, it takes 2 minutes and 44 seconds to download 564.65 MBps, while it should have taken 8 seconds. Copying a file of that size by SCP takes 10 seconds, so it seems it's the LFS stack who is slow.
Server is Ubuntu 14.04 LTS, with 2 CPU cores, 8 GB of RAM and SSD storage. GitLab 9.1.1 Omnibus. 16 Unicorn workers.