diff --git a/sys/dev/vt/vt_core.c b/sys/dev/vt/vt_core.c
index eb2843e..4a08d11 100644
--- a/sys/dev/vt/vt_core.c
+++ b/sys/dev/vt/vt_core.c
@@ -799,13 +799,28 @@ static void
 vt_timer(void *arg)
 {
 	struct vt_device *vd;
+	struct bintime start, end;
+	struct timeval diff;
+	int next;
 
 	vd = arg;
 	/* Update screen if required. */
+	getbinuptime(&start);
 	vt_flush(vd);
+	getbinuptime(&end);
 
 	/* Schedule for next update. */
-	callout_schedule(&vd->vd_timer, hz / VT_TIMERFREQ);
+	bintime_sub(&end, &start);
+	bintime2timeval(&end, &diff);
+	if (diff.tv_sec == 0 && diff.tv_usec != 0) {
+		next = max(
+		    (1000 / VT_TIMERFREQ) - (diff.tv_usec / 1000),
+		    5 /* At least 5 ms */
+		    );
+	} else {
+		next = 1000 / VT_TIMERFREQ;
+	}
+	callout_schedule(&vd->vd_timer, hz / (1000 / next));
 }
 
 static void