diff --git a/rpcs3/Emu/Cell/lv2/sys_sync.h b/rpcs3/Emu/Cell/lv2/sys_sync.h
index b0f3f49848..80390ae6ba 100644
--- a/rpcs3/Emu/Cell/lv2/sys_sync.h
+++ b/rpcs3/Emu/Cell/lv2/sys_sync.h
@@ -334,7 +334,7 @@ public:
 #else
 			// Host scheduler quantum for windows (worst case)
 			// NOTE: On ps3 this function has very high accuracy
-			constexpr u64 host_min_quantum = 500;
+			constexpr u64 host_min_quantum = 1000;
 #endif
 			// TODO: Tune for other non windows operating sytems
 
diff --git a/rpcs3/Emu/RSX/RSXThread.cpp b/rpcs3/Emu/RSX/RSXThread.cpp
index baa1f0774a..56dfb8446b 100644
--- a/rpcs3/Emu/RSX/RSXThread.cpp
+++ b/rpcs3/Emu/RSX/RSXThread.cpp
@@ -501,7 +501,7 @@ namespace rsx
 #ifdef __linux__
 			constexpr u32 host_min_quantum = 50;
 #else
-			constexpr u32 host_min_quantum = 500;
+			constexpr u32 host_min_quantum = 1000;
 #endif
 			u64 start_time = get_system_time();
 
@@ -2543,7 +2543,7 @@ namespace rsx
 #else
 			// Host scheduler quantum for windows (worst case)
 			// NOTE: On ps3 this function has very high accuracy
-			constexpr u64 host_min_quantum = 500;
+			constexpr u64 host_min_quantum = 1000;
 #endif
 			if (remaining >= host_min_quantum)
 			{
diff --git a/rpcs3/util/atomic.cpp b/rpcs3/util/atomic.cpp
index fc23ffd66f..b44be0b7c6 100644
--- a/rpcs3/util/atomic.cpp
+++ b/rpcs3/util/atomic.cpp
@@ -574,7 +574,7 @@ void atomic_storage_futex::wait(const void* data, std::size_t size, u64 old_valu
 			}
 			else
 			{
-				const DWORD time_ms = timeout + 1 ? INFINITE : (timeout > (UINT32_MAX - 1) * 1000'000 ? (UINT32_MAX - 1) : timeout / 1000'000);
+				const DWORD time_ms = timeout + 1 ? (timeout > (UINT32_MAX - 1) * 1000'000ull ? (UINT32_MAX - 1) : timeout / 1000'000) : INFINITE;
 
 				sema_handle _cmp{};