Reprojection cannot be deactivated

To solve the problem of frame rate (90 fps halved to 45 fps) I disabled the reprojection in the settings of SteamVR.

Now my project goes to 60 fps, but now it introduces an annoying ghosting effect, while when it went to 45 fps was not present.

I reactivated the reprojection but the ghosting effect is still present.

It seems as if the reprojection was still deactivated, since the frame rate is 60 fps.