diff --git a/Runtime/CMain.cpp b/Runtime/CMain.cpp
index be6bd36bf..c23abf78b 100644
--- a/Runtime/CMain.cpp
+++ b/Runtime/CMain.cpp
@@ -447,7 +447,7 @@ public:
       using delta_duration = std::chrono::duration<float, std::ratio<1>>;
       realDt = std::chrono::duration_cast<delta_duration>(now - m_prevFrameTime).count();
       if (m_cvarCommons.m_variableDt->toBoolean()) {
-        dt = std::max(realDt, 1 / 30.f);
+        dt = std::min(realDt, 1 / 30.f);
       }
     }
     m_prevFrameTime = now;
diff --git a/extern/imgui b/extern/imgui
index 8877eab39..23a15834f 160000
--- a/extern/imgui
+++ b/extern/imgui
@@ -1 +1 @@
-Subproject commit 8877eab3933c7031e2b41f372b852618db219489
+Subproject commit 23a15834fa23226bd26a17f5142b00678617fec4