Increasing animation / overall battle speed. Is it possible?

[zini4_tha_grunt]

NO.
Soft, which used to make animation is 3DSMAX, but the animations have been converted into different format with skyfallen utility (and the game engine is the same, which one has been used in "Blood Magic"). The result: there is no way to make new animation with instruments available for modders. Give up or steal (unreachable) this soft from 1c and katauri.