diff --git a/Utilities/mutex.h b/Utilities/mutex.h
index 4c09431096..9ae83767c7 100644
--- a/Utilities/mutex.h
+++ b/Utilities/mutex.h
@@ -28,6 +28,11 @@ class shared_mutex final
 public:
 	constexpr shared_mutex() = default;
 
+	const atomic_t<u32>& raw() const
+	{
+		return m_value;
+	}
+
 	bool try_lock_shared()
 	{
 		const u32 value = m_value.load();
diff --git a/rpcs3/Emu/Cell/lv2/sys_rsx.cpp b/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
index 27323bc671..3598e91944 100644
--- a/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_rsx.cpp
@@ -245,8 +245,7 @@ void _sys_rsx_drain_event_queue(rsx::thread* rsxthr, u64 event_flags = umax, u64
 			break;
 		}
 
-		// Wait
-		thread_ctrl::wait_for(100);
+		utils::spin_on_cacheline_once(queue->mutex.raw(), 0u, 100);
 
 		// Check for timeout
 		if (wait_timeout_ms == umax)