diff --git a/src/net.cpp b/src/net.cpp
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -197,10 +197,8 @@
 
 static int GetnScore(const CService &addr) {
     LOCK(cs_mapLocalHost);
-    if (mapLocalHost.count(addr) == 0) {
-        return 0;
-    }
-    return mapLocalHost[addr].nScore;
+    const auto it = mapLocalHost.find(addr);
+    return (it != mapLocalHost.end()) ? it->second.nScore : 0;
 }
 
 // Is our peer's addrLocal potentially useful as an external IP source?
@@ -255,10 +253,11 @@
 
     {
         LOCK(cs_mapLocalHost);
-        bool fAlready = mapLocalHost.count(addr) > 0;
-        LocalServiceInfo &info = mapLocalHost[addr];
-        if (!fAlready || nScore >= info.nScore) {
-            info.nScore = nScore + (fAlready ? 1 : 0);
+        const auto [it, is_newly_added] =
+            mapLocalHost.emplace(addr, LocalServiceInfo());
+        LocalServiceInfo &info = it->second;
+        if (is_newly_added || nScore >= info.nScore) {
+            info.nScore = nScore + !is_newly_added;
             info.nPort = addr.GetPort();
         }
     }
@@ -296,10 +295,11 @@
 /** vote for a local address */
 bool SeenLocal(const CService &addr) {
     LOCK(cs_mapLocalHost);
-    if (mapLocalHost.count(addr) == 0) {
+    const auto it = mapLocalHost.find(addr);
+    if (it == mapLocalHost.end()) {
         return false;
     }
-    mapLocalHost[addr].nScore++;
+    ++it->second.nScore;
     return true;
 }