Sprites is jaggy on low move speed

I don't know, if "jaggy" is a right word, it's better to show what I mean:

consider this as a big rock in pixel art, moving in a low speed on background. Those pixels are not moving, but crawling around, looks like them changing theirs size. On bigger speed values sprites move vithout this glitchy effect.

Ok, so, my camera is ortographic and this glitch appears either on camera movement or on sprite transform.Translate().