diff --git a/src/filters/xBRZ/xbrz.cpp b/src/filters/xBRZ/xbrz.cpp
index a55c52cd..17d7830e 100644
--- a/src/filters/xBRZ/xbrz.cpp
+++ b/src/filters/xBRZ/xbrz.cpp
@@ -69,6 +69,13 @@ inline double fastSqrt(double n)
 #if (defined(__GNUC__) || defined(__clang__)) && (defined(__x86_64__) || defined(__i386__))
     __asm__ ("fsqrt" : "+t" (n));
     return n;
+#elif defined(_MSC_VER) && defined(_M_IX86)
+    // speeds up xBRZ by about 9% compared to std::sqrt which internally uses
+    // the same assembler instructions but adds some "fluff"
+    __asm {
+        fld n
+        fsqrt
+    }
 #elif defined(_MSC_VER)
     // On MSVC x64 use intrinsic with /Oi and /fp:fast
     return sqrt(n);