Am i the only one that have problem to rec and stream Hollow knight? Can anyone help me to settle that?

Did you add HK as an input? There are several things involved in recording with obs, so could you describe the problem in more detail?

basically i have drop rate (or just it stay in one images) all the time i cans send you a video via Discord

and what does adding HK as an input mean?

By "input," I just mean you are recording HK. Is the issue with frame rate? You can help that by turning down resolution a lot and selecting the "bilinear" downscale filter. This can be found by going to settings and then video.

EDIT: I also recommend turning down game resolution as well. This can be done on 1578 by just dragging the screen to make it smaller in windowed mode and then selecting "borderless."