My Application performs a bunch of relatively complicated Update or Insert statements on File/Save against a huge table.
This is sometimes slow, depending on the number of statements, I believe its the overhead of remote DB.
Is there some kind of bulk operation allowing to process all statements in one go?
No, RemoteDB is intended to replace a regular dataset operation.
Nevertheless, you can always build a XData service that receives a bunch of SQL statements and perform them server-side.