diff --git a/src/libraries/System.Private.CoreLib/src/System/Buffers/StandardFormat.cs b/src/libraries/System.Private.CoreLib/src/System/Buffers/StandardFormat.cs
index 24a49838308d76..56fe48f1b93cea 100644
--- a/src/libraries/System.Private.CoreLib/src/System/Buffers/StandardFormat.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/Buffers/StandardFormat.cs
@@ -52,7 +52,9 @@ namespace System.Buffers
         /// <param name="precision">An optional precision ranging from 0..9 or the special value NoPrecision (the default)</param>
         public StandardFormat(char symbol, byte precision = NoPrecision)
         {
-            if (precision != NoPrecision && precision > MaxPrecision)
+            // Optimized version of "precision != NoPrecision && precision > MaxPrecision"
+            // it makes StandardFormat inlinenable
+            if ((byte)(precision - (MaxPrecision + 1)) < (NoPrecision - (MaxPrecision + 1)))
                 ThrowHelper.ThrowArgumentOutOfRangeException_PrecisionTooLarge();
             if (symbol != (byte)symbol)
                 ThrowHelper.ThrowArgumentOutOfRangeException_SymbolDoesNotFit();