When saving files, sublime will freeze until the operation succeeds. For local file systems, this is not normally noticeable. For remote file systems, this can cause frustration with the interface being totally unusable while you save a file for 2-10 seconds.
I suggest making sublime save a temporary copy of the file in memory, and then save that file to the file system asynchronously from the user interface. This way, a person can save a file and continue to edit the same file, or switch to a new file, etc.