diff --git a/media/libmediametrics/MediaMetricsItem.cpp b/media/libmediametrics/MediaMetricsItem.cpp
index 4371668..7cdbe5f 100644
--- a/media/libmediametrics/MediaMetricsItem.cpp
+++ b/media/libmediametrics/MediaMetricsItem.cpp
@@ -25,6 +25,7 @@
 #include <set>
 
 #include <binder/Parcel.h>
+#include <cutils/properties.h>
 #include <utils/Errors.h>
 #include <utils/Log.h>
 #include <utils/SortedVector.h>
diff --git a/media/libmediametrics/include/media/MediaMetricsItem.h b/media/libmediametrics/include/media/MediaMetricsItem.h
index 8477f8d..303343f 100644
--- a/media/libmediametrics/include/media/MediaMetricsItem.h
+++ b/media/libmediametrics/include/media/MediaMetricsItem.h
@@ -27,12 +27,8 @@
 #include <variant>
 
 #include <binder/Parcel.h>
-#include <cutils/properties.h>
 #include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/StrongPointer.h>
-#include <utils/Timers.h>
+#include <utils/Timers.h> // nsecs_t
 
 namespace android {
 
diff --git a/services/mediametrics/TimeMachine.h b/services/mediametrics/TimeMachine.h
index b138233..6861c78 100644
--- a/services/mediametrics/TimeMachine.h
+++ b/services/mediametrics/TimeMachine.h
@@ -138,7 +138,7 @@
             if (timeSequence.empty()           // no elements
                     || property.back() == AMEDIAMETRICS_PROP_SUFFIX_CHAR_DUPLICATES_ALLOWED
                     || timeSequence.rbegin()->second != el) { // value changed
-                timeSequence.emplace(time, std::move(el));
+                timeSequence.emplace_hint(timeSequence.end(), time, std::move(el));
 
                 if (timeSequence.size() > kTimeSequenceMaxElements) {
                     ALOGV("%s: restricting maximum elements (discarding oldest) for %s",
diff --git a/services/mediametrics/TransactionLog.h b/services/mediametrics/TransactionLog.h
index d64acf3..8a22826 100644
--- a/services/mediametrics/TransactionLog.h
+++ b/services/mediametrics/TransactionLog.h
@@ -94,8 +94,8 @@
         std::lock_guard lock(mLock);
 
         (void)gc(garbage);
-        mLog.emplace(time, item);
-        mItemMap[key].emplace(time, item);
+        mLog.emplace_hint(mLog.end(), time, item);
+        mItemMap[key].emplace_hint(mItemMap[key].end(), time, item);
         return NO_ERROR;  // no errors for now.
     }