diff --git a/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.Compression.targets b/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.Compression.targets
index c969520ba8f9..711f1526e96a 100644
--- a/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.Compression.targets
+++ b/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.Compression.targets
@@ -161,11 +161,12 @@ Copyright (c) .NET Foundation. All rights reserved.
   </PropertyGroup>
 
   <PropertyGroup>
-    <BuildCompressionFormats>$(BuildCompressionFormats);gzip</BuildCompressionFormats>
-    <PublishCompressionFormats>$(PublishCompressionFormats);gzip;brotli</PublishCompressionFormats>
+    <EnableDefaultCompressionFormats Condition="'$(EnableDefaultCompressionFormats)' == ''">true</EnableDefaultCompressionFormats>
+    <BuildCompressionFormats Condition="'$(EnableDefaultCompressionFormats)' == 'true'">$(BuildCompressionFormats);gzip</BuildCompressionFormats>
+    <PublishCompressionFormats Condition="'$(EnableDefaultCompressionFormats)' == 'true'">$(PublishCompressionFormats);gzip;brotli</PublishCompressionFormats>
     <DisableBuildCompression Condition="'$(DisableBuildCompression)' == ''">false</DisableBuildCompression>
-    <CompressionIncludePatterns>$(CompressionIncludePatterns)</CompressionIncludePatterns>
-    <CompressionExcludePatterns>$(CompressionExcludePatterns)</CompressionExcludePatterns>
+    <!-- Support passing in a custom compression level to brotli and respect the old internal flag for blazor -->
+    <BrotliCompressionLevel Condition="'$(_BlazorBrotliCompressionLevel)' != ''">$(_BlazorBrotliCompressionLevel)</BrotliCompressionLevel>
   </PropertyGroup>
 
   <PropertyGroup>
@@ -195,7 +196,7 @@ Copyright (c) .NET Foundation. All rights reserved.
           GeneratePublishCompressedStaticWebAssets
             ResolvePublishCompressedStaticWebAssetsConfiguration
      -->
-    <ResolvePublishRelatedStaticWebAssetsDependsOn Condition="'$(DisableBuildCompression)' != 'true'">
+    <ResolvePublishRelatedStaticWebAssetsDependsOn>
       ResolvePublishCompressedStaticWebAssets;
       $(ResolvePublishRelatedStaticWebAssetsDependsOn)
     </ResolvePublishRelatedStaticWebAssetsDependsOn>
@@ -216,7 +217,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     <_DotNetHostFileName Condition="'$(OS)' == 'Windows_NT'">dotnet.exe</_DotNetHostFileName>
   </PropertyGroup>
 
-<!-- Build -->
+  <!-- Build -->
 
   <Target Name="ResolveBuildCompressedStaticWebAssets" DependsOnTargets="$(ResolveBuildCompressedStaticWebAssetsDependsOn)">
     <DefineStaticWebAssets
@@ -267,7 +268,7 @@ Copyright (c) .NET Foundation. All rights reserved.
 
     <BrotliCompress Condition="'@(_BrotliCompressedStaticWebAssets)' != ''"
       FilesToCompress="@(_BrotliCompressedStaticWebAssets)"
-      CompressionLevel="$(_BlazorBrotliCompressionLevel)"
+      CompressionLevel="$(BrotliCompressionLevel)"
       ToolAssembly="$(_StaticWebAssetsSdkToolAssembly)"
       ToolExe="$(_DotNetHostFileName)"
       ToolPath="$(_DotNetHostDirectory)" />
diff --git a/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.targets b/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.targets
index c4c9e9fea131..de69749def7a 100644
--- a/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.targets
+++ b/src/StaticWebAssetsSdk/Targets/Microsoft.NET.Sdk.StaticWebAssets.targets
@@ -672,7 +672,7 @@ Copyright (c) .NET Foundation. All rights reserved.
     DependsOnTargets="ResolveStaticWebAssetsConfiguration;UpdateExistingPackageStaticWebAssets">
 
     <DefineStaticWebAssets
-      CandidateAssets="@(Content)"
+      CandidateAssets="@(Content->Distinct())"
       FingerprintCandidates="$(StaticWebAssetsFingerprintContent)"
       FingerprintPatterns="@(StaticWebAssetFingerprintPattern)"
       RelativePathPattern="wwwroot/**"
diff --git a/src/StaticWebAssetsSdk/Tasks/ApplyCompressionNegotiation.cs b/src/StaticWebAssetsSdk/Tasks/ApplyCompressionNegotiation.cs
index 4acac3a5dbfb..c9495b34cd8c 100644
--- a/src/StaticWebAssetsSdk/Tasks/ApplyCompressionNegotiation.cs
+++ b/src/StaticWebAssetsSdk/Tasks/ApplyCompressionNegotiation.cs
@@ -36,15 +36,39 @@ public override bool Execute()
             }
         }
 
-        var assetsById = CandidateAssets.Select(StaticWebAsset.FromTaskItem).ToDictionary(a => a.Identity);
+        var assetsById = new Dictionary<string, StaticWebAsset>(CandidateAssets.Length, OSPath.PathComparer);
+        // A good rule of thumb is that the number of compressed assets is half the number of assets.
+        var compressedAssets = new List<StaticWebAsset>(CandidateAssets.Length / 2);
 
-        var endpointsByAsset = CandidateEndpoints.Select(StaticWebAssetEndpoint.FromTaskItem)
-            .GroupBy(e => e.AssetFile)
-            .ToDictionary(g => g.Key, g => g.ToList());
+        for (var i = 0; i < CandidateAssets.Length; i++)
+        {
+            var candidate = StaticWebAsset.FromTaskItem(CandidateAssets[i]);
+            if (assetsById.ContainsKey(CandidateAssets[i].ItemSpec))
+            {
+                Log.LogWarning("Detected duplicated asset '{0}'. Skipping the asset because it was already processed.", candidate.Identity);
+                continue;
+            }
 
-        var compressedAssets = assetsById.Values.Where(a => a.AssetTraitName == "Content-Encoding").ToList();
-        var updatedEndpoints = new HashSet<StaticWebAssetEndpoint>(StaticWebAssetEndpoint.RouteAndAssetComparer);
+            assetsById[candidate.Identity] = candidate;
+            if (string.Equals(candidate.AssetTraitName, "Content-Encoding", StringComparison.Ordinal))
+            {
+                compressedAssets.Add(candidate);
+            }
+        }
 
+        var endpointsByAsset = new Dictionary<string, List<StaticWebAssetEndpoint>>(CandidateEndpoints.Length, StringComparer.OrdinalIgnoreCase);
+        for (var i = 0; i < CandidateEndpoints.Length; i++)
+        {
+            var endpoint = StaticWebAssetEndpoint.FromTaskItem(CandidateEndpoints[i]);
+            if (!endpointsByAsset.TryGetValue(endpoint.AssetFile, out var endpoints))
+            {
+                endpoints = [];
+                endpointsByAsset[endpoint.AssetFile] = endpoints;
+            }
+            endpoints.Add(endpoint);
+        }
+
+        var updatedEndpoints = new HashSet<StaticWebAssetEndpoint>(StaticWebAssetEndpoint.RouteAndAssetComparer);
         var preservedEndpoints = new Dictionary<(string, string), StaticWebAssetEndpoint>();
 
         // Add response headers to compressed endpoints
@@ -52,20 +76,20 @@ public override bool Execute()
         {
             if (!assetsById.TryGetValue(compressedAsset.RelatedAsset, out var relatedAsset))
             {
-                Log.LogWarning("Related asset not found for compressed asset: {0}", compressedAsset.Identity);
-                throw new InvalidOperationException($"Related asset not found for compressed asset: {compressedAsset.Identity}");
+                Log.LogWarning("Related asset '{0}' not found for compressed asset: '{1}'. Skipping asset", compressedAsset.RelatedAsset, compressedAsset.Identity);
+                continue;
             }
 
             if (!endpointsByAsset.TryGetValue(compressedAsset.Identity, out var compressedEndpoints))
             {
-                Log.LogWarning("Endpoints not found for compressed asset: {0} {1}", compressedAsset.RelativePath, compressedAsset.Identity);
-                throw new InvalidOperationException($"Endpoints not found for compressed asset: {compressedAsset.Identity}");
+                Log.LogWarning("Endpoints not found for compressed asset: '{0}' '{1}'. Skipping asset", compressedAsset.RelativePath, compressedAsset.Identity);
+                continue;
             }
 
             if (!endpointsByAsset.TryGetValue(relatedAsset.Identity, out var relatedAssetEndpoints))
             {
-                Log.LogWarning("Endpoints not found for related asset: {0}", relatedAsset.Identity);
-                throw new InvalidOperationException($"Endpoints not found for related asset: {relatedAsset.Identity}");
+                Log.LogWarning("Endpoints not found for related asset: '{0}'. Skipping asset", relatedAsset.Identity);
+                continue;
             }
 
             Log.LogMessage("Processing compressed asset: {0}", compressedAsset.Identity);
diff --git a/src/StaticWebAssetsSdk/Tasks/Compression/DiscoverPrecompressedAssets.cs b/src/StaticWebAssetsSdk/Tasks/Compression/DiscoverPrecompressedAssets.cs
index ac72dd936950..71e8b884033e 100644
--- a/src/StaticWebAssetsSdk/Tasks/Compression/DiscoverPrecompressedAssets.cs
+++ b/src/StaticWebAssetsSdk/Tasks/Compression/DiscoverPrecompressedAssets.cs
@@ -30,7 +30,19 @@ public override bool Execute()
         var candidates = CandidateAssets.Select(StaticWebAsset.FromTaskItem).ToArray();
         var assetsToUpdate = new List<ITaskItem>();
 
-        var candidatesByIdentity = candidates.ToDictionary(asset => asset.Identity, OSPath.PathComparer);
+        var candidatesByIdentity = new Dictionary<string, StaticWebAsset>(CandidateAssets.Length, OSPath.PathComparer);
+        for (var i = 0; i < candidates.Length; i++)
+        {
+            var candidate = candidates[i];
+            if (candidatesByIdentity.ContainsKey(candidate.Identity))
+            {
+                Log.LogMessage(MessageImportance.Low,
+                    "Detected duplicated asset '{0}'. Skipping the asset because it was already processed.",
+                    candidate.Identity);
+                return false;
+            }
+            candidatesByIdentity[candidate.Identity] = candidate;
+        }
 
         foreach (var candidate in candidates)
         {