The altitude changes abruptly

In flight (when the pressure is already set to 29.92) the altitude changes sharply. Let's say the flight level is 32000, and at some point the plane finds itself lower or higher by 300-400 feet. Wind smoothing is enabled. I understand that if these were vertical flows, the altitude would change more smoothly, and not in one second. How can this be influenced? And when will the problem of wind loading in FS9 with the DWC option enabled be fixed. Thanks.