Heavy I/O with sqlite on Windows

[frankTheTank72]

When I use sqlite on windows PC my I/O starts to go up to 100% and the sync rate is very slow.
Seems the sqlite is by default in FULL synchronous mode.

I should be able to set PRAGMA synchronous = OFF as parameter for the session.

Please add this paramter to the config in the node. (like WAL)

Hint
On Ubuntu it seeems to work fine

[frankTheTank72]

Maybe also add PRAGMA cache_size -2000 parameter to define the cache

[ohager]

this should be "solved" using #819