diff --git a/src/random.cpp b/src/random.cpp
index 55d5f388724..9b5131023f7 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -599,7 +599,7 @@ void SeedPeriodic(CSHA512& hasher, RNGState& rng) noexcept
     // Add the events hasher into the mix
     rng.SeedEvents(hasher);
 
-    // Dynamic environment data (performance monitoring, ...)
+    // Dynamic environment data (clocks, resource usage, ...)
     auto old_size = hasher.Size();
     RandAddDynamicEnv(hasher);
     LogDebug(BCLog::RAND, "Feeding %i bytes of dynamic environment data into RNG\n", hasher.Size() - old_size);
@@ -616,7 +616,7 @@ void SeedStartup(CSHA512& hasher, RNGState& rng) noexcept
     // Everything that the 'slow' seeder includes.
     SeedSlow(hasher, rng);
 
-    // Dynamic environment data (performance monitoring, ...)
+    // Dynamic environment data (clocks, resource usage, ...)
     auto old_size = hasher.Size();
     RandAddDynamicEnv(hasher);
 
diff --git a/src/random.h b/src/random.h
index 536e697ccaf..2a26ca986be 100644
--- a/src/random.h
+++ b/src/random.h
@@ -49,7 +49,7 @@
  *
  * - RandAddPeriodic() seeds everything that fast seeding includes, but additionally:
  *   - A high-precision timestamp
- *   - Dynamic environment data (performance monitoring, ...)
+ *   - Dynamic environment data (clocks, resource usage, ...)
  *   - Strengthen the entropy for 10 ms using repeated SHA512.
  *   This is run once every minute.
  *
diff --git a/src/randomenv.cpp b/src/randomenv.cpp
index dee48481c5a..7a46a5109bc 100644
--- a/src/randomenv.cpp
+++ b/src/randomenv.cpp
@@ -28,7 +28,6 @@
 
 #ifdef WIN32
 #include <windows.h>
-#include <winreg.h>
 #else
 #include <fcntl.h>
 #include <netinet/in.h>
@@ -64,45 +63,6 @@ extern char** environ; // NOLINT(readability-redundant-declaration): Necessary o
 
 namespace {
 
-void RandAddSeedPerfmon(CSHA512& hasher)
-{
-#ifdef WIN32
-    // Seed with the entire set of perfmon data
-
-    // This can take up to 2 seconds, so only do it every 10 minutes.
-    // Initialize last_perfmon to 0 seconds, we don't skip the first call.
-    static std::atomic<SteadyClock::time_point> last_perfmon{SteadyClock::time_point{0s}};
-    auto last_time = last_perfmon.load();
-    auto current_time = SteadyClock::now();
-    if (current_time < last_time + 10min) return;
-    last_perfmon = current_time;
-
-    std::vector<unsigned char> vData(250000, 0);
-    long ret = 0;
-    unsigned long nSize = 0;
-    const size_t nMaxSize = 10000000; // Bail out at more than 10MB of performance data
-    while (true) {
-        nSize = vData.size();
-        ret = RegQueryValueExA(HKEY_PERFORMANCE_DATA, "Global", nullptr, nullptr, vData.data(), &nSize);
-        if (ret != ERROR_MORE_DATA || vData.size() >= nMaxSize)
-            break;
-        vData.resize(std::min((vData.size() * 3) / 2, nMaxSize)); // Grow size of buffer exponentially
-    }
-    RegCloseKey(HKEY_PERFORMANCE_DATA);
-    if (ret == ERROR_SUCCESS) {
-        hasher.Write(vData.data(), nSize);
-        memory_cleanse(vData.data(), nSize);
-    } else {
-        // Performance data is only a best-effort attempt at improving the
-        // situation when the OS randomness (and other sources) aren't
-        // adequate. As a result, failure to read it is isn't considered critical,
-        // so we don't call RandFailure().
-        // TODO: Add logging when the logger is made functional before global
-        // constructors have been invoked.
-    }
-#endif
-}
-
 /** Helper to easily feed data into a CSHA512.
  *
  * Note that this does not serialize the passed object (like stream.h's << operators do).
@@ -227,8 +187,6 @@ void AddAllCPUID(CSHA512& hasher)
 
 void RandAddDynamicEnv(CSHA512& hasher)
 {
-    RandAddSeedPerfmon(hasher);
-
     // Various clocks
 #ifdef WIN32
     FILETIME ftime;