Btrfs vs. F2FS Multi-SSD Performance On Linux 4.11
With SQLite it's not too surprising that by default F2FS is much faster than Btrfs: Btrfs tends to be slower out-of-the-box for database workloads due to its copy-on-write behavior.
With FS-Mark, Btrfs started out around the performance of F2FS but with RAID0 for two and four disks was much faster while RAID1/RAID10 was similar to the single disk configuration.