How sync one vault only

Every time I create a remote vault everything on mu computer gets transferred to my mobile. I only want to sync one vault. I’ve tried moving the remote vault to various locations within the file system. I’ve listed vaults not to be synced but it just keeps happening

I want to create a notes file for when I’m away from my computer so I can pick up notes later. I don’t want to fill my limited mobile memory with all my vaults

I’m pretty pleased to have found out how to sync but this is bugging me