From 6e61343ad830c5b6b02740aa18ab05da53711553 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Tue, 20 Jun 2023 01:20:48 -0500
Subject: [PATCH] playSub optimization

MAY CAUSE REGRESSIONS but I don't know
---
 src/engine/playback.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index 83c0d29fb..a10b1ad6b 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -1314,7 +1314,7 @@ bool DivEngine::nextTick(bool noAccum, bool inhibitLowLat) {
       subticks=tickMult;
 
       if (stepPlay!=1) {
-        tempoAccum+=curSubSong->virtualTempoN;
+        tempoAccum+=(skipping && curSubSong->virtualTempoN<curSubSong->virtualTempoD)?curSubSong->virtualTempoD:curSubSong->virtualTempoN;
         while (tempoAccum>=curSubSong->virtualTempoD) {
           tempoAccum-=curSubSong->virtualTempoD;
           if (--ticks<=0) {