The attack rates are the same as in Native, except for archery for which the rate has been halved. To uninstall, you can copy the actions.txt file from the Native module folder and paste it over the actions.txt file in the other module folder. This process will not work if the other mod has fiddled with animations (other than CAE). If that's the case, you'll have to ask the developers of the mod in question about the uninstall process.

You could show a bit of tact next time, when you're asking the creator of the animations how to uninstall them!

Sorry about that. I think a good idea would be to fill the holes in animations of holstering weapons (if possible) and to make them twice faster or even more cause character is waving sword like if he was dying from exhaustion.

That's alright.

I had considered improving animations for drawing and sheathing weapons, but it became a bit too complicated and I moved on to other projects.

My mod has made no significant changes to attack rates, other than for archery. Some melee weapon classes were slowed very slightly (i.e., from a duration of .65 seconds to a duration of .71 seconds or something), to prevent the characters from moving inhumanly fast. I expect the mod you're playing (SnD's Polished Native) slowed the attack speeds itself.