diff --git a/src/Umbraco.Core/Persistence/Dtos/ContentTypeDto.cs b/src/Umbraco.Core/Persistence/Dtos/ContentTypeDto.cs
index 68036dab4b..58ecd0cd39 100644
--- a/src/Umbraco.Core/Persistence/Dtos/ContentTypeDto.cs
+++ b/src/Umbraco.Core/Persistence/Dtos/ContentTypeDto.cs
@@ -9,6 +9,7 @@ namespace Umbraco.Core.Persistence.Dtos
     internal class ContentTypeDto
     {
         public const string TableName = Constants.DatabaseSchema.Tables.ContentType;
+        private string _alias;
 
         [Column("pk")]
         [PrimaryKeyColumn(IdentitySeed = 700)]
@@ -21,7 +22,7 @@ namespace Umbraco.Core.Persistence.Dtos
 
         [Column("alias")]
         [NullSetting(NullSetting = NullSettings.Null)]
-        public string Alias { get; set; }
+        public string Alias { get => _alias; set => _alias = value == null ? null : string.Intern(value); }
 
         [Column("icon")]
         [Index(IndexTypes.NonClustered)]
diff --git a/src/Umbraco.Core/Persistence/Dtos/PropertyTypeDto.cs b/src/Umbraco.Core/Persistence/Dtos/PropertyTypeDto.cs
index f22e4453f4..d5ce28d3b5 100644
--- a/src/Umbraco.Core/Persistence/Dtos/PropertyTypeDto.cs
+++ b/src/Umbraco.Core/Persistence/Dtos/PropertyTypeDto.cs
@@ -10,6 +10,8 @@ namespace Umbraco.Core.Persistence.Dtos
     [ExplicitColumns]
     internal class PropertyTypeDto
     {
+        private string _alias;
+
         [Column("id")]
         [PrimaryKeyColumn(IdentitySeed = 100)]
         public int Id { get; set; }
@@ -29,7 +31,7 @@ namespace Umbraco.Core.Persistence.Dtos
 
         [Index(IndexTypes.NonClustered, Name = "IX_cmsPropertyTypeAlias")]
         [Column("Alias")]
-        public string Alias { get; set; }
+        public string Alias { get => _alias; set => _alias = value == null ? null : string.Intern(value); }
 
         [Column("Name")]
         [NullSetting(NullSetting = NullSettings.Null)]
diff --git a/src/Umbraco.Core/PropertyEditors/UnPublishedContentPropertyCacheCompressionOptions.cs b/src/Umbraco.Core/PropertyEditors/UnPublishedContentPropertyCacheCompressionOptions.cs
index ece25479cc..954390ca1e 100644
--- a/src/Umbraco.Core/PropertyEditors/UnPublishedContentPropertyCacheCompressionOptions.cs
+++ b/src/Umbraco.Core/PropertyEditors/UnPublishedContentPropertyCacheCompressionOptions.cs
@@ -14,6 +14,11 @@ namespace Umbraco.Core.PropertyEditors
                 //Only compress non published content that supports publishing and the property is text
                 return true;
             }
+            if (propertyType.ValueStorageType == ValueStorageType.Integer && Umbraco.Core.Constants.PropertyEditors.Aliases.Boolean.Equals(dataEditor.Alias))
+            {
+                //Compress boolean values from int to bool
+                return true;
+            }
             return false;
         }
     }
diff --git a/src/Umbraco.Web/PublishedCache/NuCache/DataSource/BTree.DictionaryOfPropertyDataSerializer.cs b/src/Umbraco.Web/PublishedCache/NuCache/DataSource/BTree.DictionaryOfPropertyDataSerializer.cs
index 304fc6def0..f9a44adab1 100644
--- a/src/Umbraco.Web/PublishedCache/NuCache/DataSource/BTree.DictionaryOfPropertyDataSerializer.cs
+++ b/src/Umbraco.Web/PublishedCache/NuCache/DataSource/BTree.DictionaryOfPropertyDataSerializer.cs
@@ -11,6 +11,7 @@ namespace Umbraco.Web.PublishedCache.NuCache.DataSource
     /// </summary>
     internal class DictionaryOfPropertyDataSerializer : SerializerBase, ISerializer<IDictionary<string, PropertyData[]>>, IDictionaryOfPropertyDataSerializer
     {
+        private static readonly PropertyData[] Empty = Array.Empty<PropertyData>();
         public IDictionary<string, PropertyData[]> ReadFrom(Stream stream)
         {
             // read properties count
@@ -25,6 +26,11 @@ namespace Umbraco.Web.PublishedCache.NuCache.DataSource
 
                 // read values count
                 var vcount = PrimitiveSerializer.Int32.ReadFrom(stream);
+                if(vcount == 0)
+                {
+                    dict[key] = Empty;
+                    continue;
+                }
 
                 // create pdata and add to the dictionary
                 var pdatas = new PropertyData[vcount];
diff --git a/src/Umbraco.Web/PublishedCache/NuCache/DataSource/MsgPackContentNestedDataSerializer.cs b/src/Umbraco.Web/PublishedCache/NuCache/DataSource/MsgPackContentNestedDataSerializer.cs
index f1400382e6..bfbe1d8818 100644
--- a/src/Umbraco.Web/PublishedCache/NuCache/DataSource/MsgPackContentNestedDataSerializer.cs
+++ b/src/Umbraco.Web/PublishedCache/NuCache/DataSource/MsgPackContentNestedDataSerializer.cs
@@ -101,6 +101,10 @@ namespace Umbraco.Web.PublishedCache.NuCache.DataSource
                     {
                         property.Value = LZ4Pickler.Pickle(Encoding.UTF8.GetBytes((string)property.Value), LZ4Level.L00_FAST);
                     }
+                    foreach (var property in propertyAliasToData.Value.Where(x => x.Value != null && x.Value is int intVal))
+                    {
+                        property.Value = Convert.ToBoolean((int)property.Value);
+                    }
                 }
             }
         }