It looks like time scale does not affect animation in sprites.
Setting time scale to something below 1 (0.5, 0.2, 0..) won't affect sprite animation - will play with normal speed.
And one more thing, I have a sprite with two animations:
when "First" animation is finished -> "Second" start from begining
Changing time scale to something different than 1 and then change time scale back to 1, while "First" animation is playing - breaks that relation. "First" animation plays to the last frame, but second animation will not start - freezes on the last frame of "First" animation.
C2 R77 64bit