move to new System.Threading.Lock type for better performance

src/Jellyfin.LiveTv/Timers/ItemDataProvider.cs

@@ -6,6 +6,7 @@ using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
 using System.Text.Json;
+using System.Threading;
 using Jellyfin.Extensions.Json;
 using Microsoft.Extensions.Logging;
 
@@ -15,7 +16,7 @@ namespace Jellyfin.LiveTv.Timers
         where T : class
     {
         private readonly string _dataPath;
-        private readonly object _fileDataLock = new object();
+        private readonly Lock _fileDataLock = new();
         private readonly JsonSerializerOptions _jsonOptions = JsonDefaults.Options;
         private T[]? _items;
 

src/Jellyfin.Networking/Manager/NetworkManager.cs

@@ -27,7 +27,7 @@ public class NetworkManager : INetworkManager, IDisposable
     /// <summary>
     /// Threading lock for network properties.
     /// </summary>
-    private readonly object _initLock;
+    private readonly Lock _initLock;
 
     private readonly ILogger<NetworkManager> _logger;
 
@@ -35,7 +35,7 @@ public class NetworkManager : INetworkManager, IDisposable
 
     private readonly IConfiguration _startupConfig;
 
-    private readonly object _networkEventLock;
+    private readonly Lock _networkEventLock;
 
     /// <summary>
     /// Holds the published server URLs and the IPs to use them on.
@@ -93,7 +93,7 @@ public class NetworkManager : INetworkManager, IDisposable
         _interfaces = new List<IPData>();
         _macAddresses = new List<PhysicalAddress>();
         _publishedServerUrls = new List<PublishedServerUriOverride>();
-        _networkEventLock = new object();
+        _networkEventLock = new();
         _remoteAddressFilter = new List<IPNetwork>();
 
         _ = bool.TryParse(startupConfig[DetectNetworkChangeKey], out var detectNetworkChange);