Overlay + Multiply Filter, very slow, can it be sped up?

[Schmidt]

I use Direct2D
and I use overlays in my game. (60fps full animated, multiple layered game)
the overlays are used to create effects like darker, lighter, warmer, colder etc. but also shadowing.

Well, a concrete example for "timeofday-Screen-tinting" and also "timeofday-Shadowing" of smaller sprites
(as e.g. for a simple "Avatar-PNG-sprite", as well as a simple "Tree-PNG-sprite") ...
would be helpful for the OP, I guess.

Olaf