diff --git a/Content.Benchmarks/DeviceNetworkingBenchmark.cs b/Content.Benchmarks/DeviceNetworkingBenchmark.cs
index 05d533d3f9..27e5000bc0 100644
--- a/Content.Benchmarks/DeviceNetworkingBenchmark.cs
+++ b/Content.Benchmarks/DeviceNetworkingBenchmark.cs
@@ -19,7 +19,6 @@ namespace Content.Benchmarks;
 public class DeviceNetworkingBenchmark
 {
     private PairTracker _pair = default!;
-    private IEntityManager _entityManager = default!;
     private DeviceNetworkTestSystem _deviceNetTestSystem = default!;
     private DeviceNetworkSystem _deviceNetworkSystem = default!;
     private EntityUid _sourceEntity;
@@ -56,34 +55,35 @@ public class DeviceNetworkingBenchmark
     public int EntityCount = 500;
 
     [GlobalSetup]
-    public void Setup()
+    public async Task SetupAsync()
     {
         ProgramShared.PathOffset = "../../../../";
-        _pair = PoolManager.GetServerClient(new PoolSettings{NoClient = true, ExtraPrototypes = Prototypes}).GetAwaiter().GetResult();
+        _pair = await PoolManager.GetServerClient(new PoolSettings{NoClient = true, ExtraPrototypes = Prototypes});
         var server = _pair.Pair.Server;
 
-        _entityManager = server.ResolveDependency<IEntityManager>();
-        _deviceNetworkSystem = _entityManager.EntitySysManager.GetEntitySystem<DeviceNetworkSystem>();
-        _deviceNetTestSystem = _entityManager.EntitySysManager.GetEntitySystem<DeviceNetworkTestSystem>();
-
-        IoCManager.InitThread(_pair.Pair.Server.InstanceDependencyCollection);
-
-        var testValue = "test";
-        _payload = new NetworkPayload
+        await server.WaitPost(() =>
         {
-            ["Test"] = testValue,
-            ["testnumber"] = 1,
-            ["testbool"] = true
-        };
+            var entityManager = server.InstanceDependencyCollection.Resolve<IEntityManager>();
+            _deviceNetworkSystem = entityManager.EntitySysManager.GetEntitySystem<DeviceNetworkSystem>();
+            _deviceNetTestSystem = entityManager.EntitySysManager.GetEntitySystem<DeviceNetworkTestSystem>();
 
-        _sourceEntity = _entityManager.SpawnEntity("DummyNetworkDevice", MapCoordinates.Nullspace);
-        _sourceWirelessEntity = _entityManager.SpawnEntity("DummyWirelessNetworkDevice", MapCoordinates.Nullspace);
+            var testValue = "test";
+            _payload = new NetworkPayload
+            {
+                ["Test"] = testValue,
+                ["testnumber"] = 1,
+                ["testbool"] = true
+            };
 
-        for (var i = 0; i < EntityCount; i++)
-        {
-            _targetEntities.Add(_entityManager.SpawnEntity("DummyNetworkDevice", MapCoordinates.Nullspace));
-            _targetWirelessEntities.Add(_entityManager.SpawnEntity("DummyWirelessNetworkDevice", MapCoordinates.Nullspace));
-        }
+            _sourceEntity = entityManager.SpawnEntity("DummyNetworkDevice", MapCoordinates.Nullspace);
+            _sourceWirelessEntity = entityManager.SpawnEntity("DummyWirelessNetworkDevice", MapCoordinates.Nullspace);
+
+            for (var i = 0; i < EntityCount; i++)
+            {
+                _targetEntities.Add(entityManager.SpawnEntity("DummyNetworkDevice", MapCoordinates.Nullspace));
+                _targetWirelessEntities.Add(entityManager.SpawnEntity("DummyWirelessNetworkDevice", MapCoordinates.Nullspace));
+            }
+        });
     }
 
     [Benchmark(Baseline = true, Description = "Entity Events")]
diff --git a/Content.Server/Atmos/EntitySystems/GasTileOverlaySystem.cs b/Content.Server/Atmos/EntitySystems/GasTileOverlaySystem.cs
index 3b3acf8a38..77b4781175 100644
--- a/Content.Server/Atmos/EntitySystems/GasTileOverlaySystem.cs
+++ b/Content.Server/Atmos/EntitySystems/GasTileOverlaySystem.cs
@@ -1,6 +1,5 @@
 using System.Linq;
 using System.Runtime.CompilerServices;
-using System.Threading;
 using System.Threading.Tasks;
 using Content.Server.Atmos.Components;
 using Content.Shared.Atmos;
@@ -255,17 +254,11 @@ namespace Content.Server.Atmos.EntitySystems
             // Afterwards we reset all the chunk data for the next time we tick.
             var players = _playerManager.ServerSessions.Where(x => x.Status == SessionStatus.InGame).ToArray();
             var opts = new ParallelOptions { MaxDegreeOfParallelism = _parMan.ParallelProcessCount };
-            var mainThread = Thread.CurrentThread;
-            var parentDeps = IoCManager.Instance!;
-            Parallel.ForEach(players, opts, p => UpdatePlayer(p, curTick, mainThread, parentDeps));
+            Parallel.ForEach(players, opts, p => UpdatePlayer(p, curTick));
         }
 
-        private void UpdatePlayer(IPlayerSession playerSession, GameTick curTick, Thread mainThread, IDependencyCollection parentDeps)
+        private void UpdatePlayer(IPlayerSession playerSession, GameTick curTick)
         {
-            // Thjs exists JUST to be able to resolve IRobustStringSerializer for networked message sending.
-            if (mainThread != Thread.CurrentThread)
-                IoCManager.InitThread(parentDeps.FromParent(parentDeps), true);
-
             var xformQuery = GetEntityQuery<TransformComponent>();
             var chunksInRange = _chunkingSys.GetChunksForSession(playerSession, ChunkSize, xformQuery, _chunkIndexPool, _chunkViewerPool);
             var previouslySent = _lastSentChunks[playerSession];
diff --git a/Content.Server/Decals/DecalSystem.cs b/Content.Server/Decals/DecalSystem.cs
index 7b1dd93aef..ca0d170fb0 100644
--- a/Content.Server/Decals/DecalSystem.cs
+++ b/Content.Server/Decals/DecalSystem.cs
@@ -482,8 +482,6 @@ namespace Content.Server.Decals
 
         public void UpdatePlayer(IPlayerSession player)
         {
-            IoCManager.InitThread(_dependencies, replaceExisting: true);
-
             var xformQuery = GetEntityQuery<TransformComponent>();
             var chunksInRange = _chunking.GetChunksForSession(player, ChunkSize, xformQuery, _chunkIndexPool, _chunkViewerPool);
             var staleChunks = _chunkViewerPool.Get();