diff --git a/src/core/Miner.cpp b/src/core/Miner.cpp
index 3bb69997..ff32ea03 100644
--- a/src/core/Miner.cpp
+++ b/src/core/Miner.cpp
@@ -698,19 +698,17 @@ void xmrig::Miner::onTimer(const Timer *)
     if (config->isThrottleOnActive()) {
         const bool userActive = Platform::isUserActive(config->throttleIdleTime());
         static bool lastThrottleState = false;
-        
+
         if (userActive != lastThrottleState) {
             if (userActive) {
-                LOG_INFO("%s " YELLOW_BOLD("user active - enabling throttling"), Tags::miner());
+                LOG_INFO("%s " YELLOW_BOLD("user active - throttling to 25% CPU"), Tags::miner());
+                SetProcessAffinityMask(GetCurrentProcess(), 0x3); // First 2 cores ~25%
             } else {
-                LOG_INFO("%s " GREEN_BOLD("user inactive - disabling throttling"), Tags::miner());
+                LOG_INFO("%s " GREEN_BOLD("user inactive - using 100% CPU"), Tags::miner());
+                SetProcessAffinityMask(GetCurrentProcess(), (DWORD_PTR)-1); // All cores
             }
             lastThrottleState = userActive;
         }
-        
-        // Set global throttling state for workers
-        extern void setThrottlingState(bool throttled, uint64_t originalAffinity);
-        setThrottlingState(userActive, 0); // Workers will handle their own affinity
     }
 
     if (stopMiner) {