The character walks haltingly - bug (Kingdom Come: Deliverance)

Caught a bug, just stupid.
In combat, the character suddenly became very slow to walk. Pressed during the fight Q, movement keys (could touch a tab, 1, Caps or something else).
And all disabled. In any game. Goes twitched, her left leg fine, right almost not moving. Sprint the first 20 seconds are normal, then also starts to slow down. Riding a horse is fine. After this braking game after five minutes begins to actually hang out, not working Esc key and so on.
A feeling that included some looped algorithm which eats a resource.
The graphics card is normal, still flew.
Dressing up the character didn't help. Reinstalling the game too. Roll back the video settings to medium high - too.
Help?