diff --git a/Source/Core/Core/DolphinAnalytics.cpp b/Source/Core/Core/DolphinAnalytics.cpp
index 8e699213f6..07e541af2b 100644
--- a/Source/Core/Core/DolphinAnalytics.cpp
+++ b/Source/Core/Core/DolphinAnalytics.cpp
@@ -133,7 +133,7 @@ void DolphinAnalytics::ReportGameStart()
 }
 
 // Keep in sync with enum class GameQuirk definition.
-constexpr std::array<const char*, 18> GAME_QUIRKS_NAMES{
+constexpr std::array<const char*, 19> GAME_QUIRKS_NAMES{
     "icache-matters",
     "directly-reads-wiimote-input",
     "uses-DVDLowStopLaser",
@@ -152,6 +152,7 @@ constexpr std::array<const char*, 18> GAME_QUIRKS_NAMES{
     "uses-unknown-cp-command",
     "uses-unknown-xf-command",
     "uses-maybe-invalid-cp-command",
+    "uses-cp-perf-command",
 };
 static_assert(GAME_QUIRKS_NAMES.size() == static_cast<u32>(GameQuirk::COUNT),
               "Game quirks names and enum definition are out of sync.");
diff --git a/Source/Core/Core/DolphinAnalytics.h b/Source/Core/Core/DolphinAnalytics.h
index b5abb57b8f..711117ea09 100644
--- a/Source/Core/Core/DolphinAnalytics.h
+++ b/Source/Core/Core/DolphinAnalytics.h
@@ -69,6 +69,9 @@ enum class GameQuirk
   USES_UNKNOWN_XF_COMMAND,
   // YAGCD and Dolphin's implementation disagree about what is valid in some cases
   USES_MAYBE_INVALID_CP_COMMAND,
+  // These commands are used by a few games (e.g. bug 12461), and seem to relate to perf queries.
+  // Track them separately.
+  USES_CP_PERF_COMMAND,
 
   COUNT,
 };
diff --git a/Source/Core/VideoCommon/CPMemory.h b/Source/Core/VideoCommon/CPMemory.h
index 2ede79578b..f54445940f 100644
--- a/Source/Core/VideoCommon/CPMemory.h
+++ b/Source/Core/VideoCommon/CPMemory.h
@@ -20,6 +20,13 @@ enum
   // TODO: However, Dolphin's implementation (in LoadCPReg) and YAGCD disagree about what values are
   // valid for the lower nybble.
 
+  // YAGCD mentions 0x20 as "?", and does not mention the others
+  // Libogc has 0x00 and 0x20, where 0x00 is tied to GX_ClearVCacheMetric and 0x20 related to
+  // cpPerfMode. 0x10 may be GX_SetVCacheMetric, but that function is empty. In any case, these all
+  // are probably for perf queries, and no title seems to actually need a full implementation.
+  UNKNOWN_00 = 0x00,
+  UNKNOWN_10 = 0x10,
+  UNKNOWN_20 = 0x20,
   // YAGCD says 0x30 only; LoadCPReg allows any
   MATINDEX_A = 0x30,
   // YAGCD says 0x40 only; LoadCPReg allows any
diff --git a/Source/Core/VideoCommon/VertexLoaderManager.cpp b/Source/Core/VideoCommon/VertexLoaderManager.cpp
index 33e340cfd3..94a331a0d2 100644
--- a/Source/Core/VideoCommon/VertexLoaderManager.cpp
+++ b/Source/Core/VideoCommon/VertexLoaderManager.cpp
@@ -323,6 +323,18 @@ void LoadCPReg(u32 sub_cmd, u32 value, bool is_preprocess)
   CPState* state = is_preprocess ? &g_preprocess_cp_state : &g_main_cp_state;
   switch (sub_cmd & CP_COMMAND_MASK)
   {
+  case UNKNOWN_00:
+  case UNKNOWN_10:
+  case UNKNOWN_20:
+    if (!(sub_cmd == UNKNOWN_20 && value == 0))
+    {
+      // All titles using libogc or the official SDK issue 0x20 with value=0 on startup
+      DolphinAnalytics::Instance().ReportGameQuirk(GameQuirk::USES_CP_PERF_COMMAND);
+      DEBUG_LOG_FMT(VIDEO, "Unknown CP command possibly relating to perf queries used: {:02x}",
+                    sub_cmd);
+    }
+    break;
+
   case MATINDEX_A:
     if (sub_cmd != MATINDEX_A)
     {