SQLite cannot ever be that slow. Having used Delphi somewhat I can promise you it can never be that slow either (unless, perhaps, you are compiling in Debug mode + other special flags). My guess here would be to find what is opening the database, probably the Firemonkey tools or DB connector, then try to measure (by timing) which exact bit takes time. It is quite possible there is a wait time or some timeout needing to happen before the connection is made, or most likely (as Simon suggested), there is some other tool (such as Antivirus or AntiRansomware or such) that prohibits file writes from being more speedy. Whatever the result is - this is not an SQLite problem, so you might get a lot more valuable help from an Android or Delphi forum. Good luck!