Edit mining drill's drill rotation speed

[Andrea88]

Hi everyone! I'm trying to make a sort of "advanced electic minig drill" (with relative research tree). but naturally i want to increase the drill's rotation speed. The main question is: WHERE is this setting? I thought in file named "prototype-definitions\entity\demo-mining-drill.json" but i can't find anything about the animation speed. Anyone have got any idea?
Thanks

[I_IBlackI_I]

I thought the speed depended on how fast it was running so there is no setting for it.

[ficolas]

For other entities, there is a animation speed thing, but I dont think that works for drills

[Andrea88]

i tried increase one at a time these values: "effectivity" and "mining speed" but without the result expected. I think that i will abort this research. Maybe, i can slightly edit the picture at least to see the difference