diff --git a/src/SharpCompress/Common/Rar/RarCryptoWrapper.cs b/src/SharpCompress/Common/Rar/RarCryptoWrapper.cs
index 54ca2739..6e1ed222 100644
--- a/src/SharpCompress/Common/Rar/RarCryptoWrapper.cs
+++ b/src/SharpCompress/Common/Rar/RarCryptoWrapper.cs
@@ -63,9 +63,9 @@ internal sealed class RarCryptoWrapper : Stream
         int offset,
         int count,
         CancellationToken cancellationToken
-    ) => ReadAndDecryptAsync(buffer, offset, count, cancellationToken);
+    ) => ReadAndDecryptAsync(buffer, offset, count, cancellationToken).AsTask();
 
-    private async Task<int> ReadAndDecryptAsync(
+    private async ValueTask<int> ReadAndDecryptAsync(
         byte[] buffer,
         int offset,
         int count,
diff --git a/src/SharpCompress/Polyfills/AsyncEnumerableExtensions.cs b/src/SharpCompress/Polyfills/AsyncEnumerableExtensions.cs
index 51b6bfc8..df716ecd 100644
--- a/src/SharpCompress/Polyfills/AsyncEnumerableExtensions.cs
+++ b/src/SharpCompress/Polyfills/AsyncEnumerableExtensions.cs
@@ -20,7 +20,6 @@ public static class EnumerableExtensions
 {
     public static async IAsyncEnumerable<T> ToAsyncEnumerable<T>(this IEnumerable<T> source)
     {
-        await Task.Yield();
         foreach (var item in source)
         {
             yield return item;