diff --git a/simulations/src/runner/async_runner.rs b/simulations/src/runner/async_runner.rs
index 45947f18..28d585bd 100644
--- a/simulations/src/runner/async_runner.rs
+++ b/simulations/src/runner/async_runner.rs
@@ -34,7 +34,7 @@ where
 
     let mut node_ids: Vec<NodeId> = runner.nodes.read().iter().map(N::id).collect();
 
-    let inner_runner = runner.inner.clone();
+    let mut inner_runner = runner.inner;
     let nodes = runner.nodes;
     let (stop_tx, stop_rx) = bounded(1);
     let p = runner.producer.clone();
@@ -46,7 +46,6 @@ where
                     return Ok(());
                 }
                 default => {
-                    let mut inner_runner = inner_runner.write();
                     node_ids.shuffle(&mut inner_runner.rng);
                     for ids_chunk in node_ids.chunks(chunk_size) {
                         let ids: HashSet<NodeId> = ids_chunk.iter().copied().collect();
diff --git a/simulations/src/runner/glauber_runner.rs b/simulations/src/runner/glauber_runner.rs
index 40cc6341..e1c06e75 100644
--- a/simulations/src/runner/glauber_runner.rs
+++ b/simulations/src/runner/glauber_runner.rs
@@ -35,7 +35,7 @@ where
         nodes: Arc::clone(&runner.nodes),
     };
 
-    let inner_runner = runner.inner.clone();
+    let mut inner_runner = runner.inner;
     let nodes = runner.nodes;
     let nodes_remaining: BTreeSet<NodeId> = (0..nodes.read().len()).map(node_id).collect();
     let iterations: Vec<_> = (0..maximum_iterations).collect();
@@ -43,9 +43,6 @@ where
     let p = runner.producer.clone();
     let p1 = runner.producer;
     let handle = std::thread::spawn(move || {
-        let mut inner_runner: parking_lot::RwLockWriteGuard<super::SimulationRunnerInner<M>> =
-            inner_runner.write();
-
         'main: for chunk in iterations.chunks(update_rate) {
             select! {
                 recv(stop_rx) -> _ => break 'main,
diff --git a/simulations/src/runner/layered_runner.rs b/simulations/src/runner/layered_runner.rs
index 20cafbcc..ca525f81 100644
--- a/simulations/src/runner/layered_runner.rs
+++ b/simulations/src/runner/layered_runner.rs
@@ -75,7 +75,7 @@ where
         nodes: Arc::clone(&runner.nodes),
     };
 
-    let inner_runner = runner.inner.clone();
+    let mut inner_runner = runner.inner;
     let nodes = runner.nodes;
     let (stop_tx, stop_rx) = bounded(1);
     let p = runner.producer.clone();
@@ -87,7 +87,6 @@ where
                     break;
                 }
                 default => {
-                    let mut inner_runner = inner_runner.write();
                     let (group_index, node_id) =
                         choose_random_layer_and_node_id(&mut inner_runner.rng, &distribution, &layers, &mut deque);
 
diff --git a/simulations/src/runner/mod.rs b/simulations/src/runner/mod.rs
index 50ef41a3..fddc82aa 100644
--- a/simulations/src/runner/mod.rs
+++ b/simulations/src/runner/mod.rs
@@ -97,7 +97,7 @@ pub struct SimulationRunner<M, N, R>
 where
     N: Node,
 {
-    inner: Arc<RwLock<SimulationRunnerInner<M>>>,
+    inner: SimulationRunnerInner<M>,
     nodes: Arc<RwLock<Vec<N>>>,
     runner_settings: RunnerSettings,
     producer: StreamProducer<R>,
@@ -148,11 +148,11 @@ where
         } = settings;
         Ok(Self {
             runner_settings,
-            inner: Arc::new(RwLock::new(SimulationRunnerInner {
+            inner: SimulationRunnerInner {
                 network,
                 rng,
                 wards,
-            })),
+            },
             nodes,
             producer,
         })
diff --git a/simulations/src/runner/sync_runner.rs b/simulations/src/runner/sync_runner.rs
index c885e6f9..bf5a8f8e 100644
--- a/simulations/src/runner/sync_runner.rs
+++ b/simulations/src/runner/sync_runner.rs
@@ -25,7 +25,7 @@ where
         nodes: Arc::clone(&runner.nodes),
     };
 
-    let inner_runner = runner.inner.clone();
+    let mut inner_runner = runner.inner;
     let nodes = runner.nodes;
 
     let (stop_tx, stop_rx) = bounded(1);
@@ -39,8 +39,6 @@ where
                     return Ok(());
                 }
                 default => {
-                    let mut inner_runner = inner_runner.write();
-
                     // we must use a code block to make sure once the step call is finished then the write lock will be released, because in Record::try_from(&state),
                     // we need to call the read lock, if we do not release the write lock,
                     // then dead lock will occur
@@ -146,10 +144,10 @@ mod tests {
         let nodes = init_dummy_nodes(&node_ids, &mut network, overlay_state);
 
         let producer = StreamProducer::default();
-        let runner: SimulationRunner<DummyMessage, DummyNode, OutData> =
+        let mut runner: SimulationRunner<DummyMessage, DummyNode, OutData> =
             SimulationRunner::new(network, nodes, producer, settings).unwrap();
         let mut nodes = runner.nodes.write();
-        runner.inner.write().step(&mut nodes);
+        runner.inner.step(&mut nodes);
         drop(nodes);
 
         let nodes = runner.nodes.read();
@@ -192,11 +190,11 @@ mod tests {
         }
         network.collect_messages();
 
-        let runner: SimulationRunner<DummyMessage, DummyNode, OutData> =
+        let mut runner: SimulationRunner<DummyMessage, DummyNode, OutData> =
             SimulationRunner::new(network, nodes, Default::default(), settings).unwrap();
 
         let mut nodes = runner.nodes.write();
-        runner.inner.write().step(&mut nodes);
+        runner.inner.step(&mut nodes);
         drop(nodes);
 
         let nodes = runner.nodes.read();