diff --git a/Cargo.toml b/Cargo.toml
index a883abff5..f758d9b67 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,6 +19,7 @@ deprecated-in-future = "warn"
 strip = true
 codegen-units = 1 # https://nnethercote.github.io/perf-book/build-configuration.html#codegen-units
 lto = "fat" # https://nnethercote.github.io/perf-book/build-configuration.html#link-time-optimization
+debug = true # So we can un `perf` on the Rust binary
 
 [workspace.dependencies]
 topos-core = { path = "./crates/topos-core", default-features = false }
diff --git a/crates/topos-p2p/src/behaviour/gossip.rs b/crates/topos-p2p/src/behaviour/gossip.rs
index 6bf3d341b..ab09cda94 100644
--- a/crates/topos-p2p/src/behaviour/gossip.rs
+++ b/crates/topos-p2p/src/behaviour/gossip.rs
@@ -25,7 +25,7 @@ use crate::{constants, event::ComposedEvent, TOPOS_ECHO, TOPOS_GOSSIP, TOPOS_REA
 
 use super::HealthStatus;
 
-const MAX_BATCH_SIZE: usize = 1024 * 100;
+const MAX_BATCH_SIZE: usize = 1024 * 20;
 
 pub struct Behaviour {
     batch_size: usize,
diff --git a/crates/topos-tce-broadcast/src/task_manager/mod.rs b/crates/topos-tce-broadcast/src/task_manager/mod.rs
index 5e96d1b20..7b7d3302a 100644
--- a/crates/topos-tce-broadcast/src/task_manager/mod.rs
+++ b/crates/topos-tce-broadcast/src/task_manager/mod.rs
@@ -107,7 +107,7 @@ impl TaskManager {
     }
 
     pub async fn run(mut self, shutdown_receiver: CancellationToken) {
-        let mut pending_certificate_interval = tokio::time::interval(Duration::from_micros(500));
+        let mut pending_certificate_interval = tokio::time::interval(Duration::from_millis(200));
 
         loop {
             tokio::select! {
diff --git a/crates/topos-tce-proxy/src/client.rs b/crates/topos-tce-proxy/src/client.rs
index a6682abb5..63d475bfc 100644
--- a/crates/topos-tce-proxy/src/client.rs
+++ b/crates/topos-tce-proxy/src/client.rs
@@ -22,9 +22,9 @@ use topos_core::{
 use tracing::{debug, error, info, info_span, warn, Instrument, Span};
 use tracing_opentelemetry::OpenTelemetrySpanExt;
 
-const CERTIFICATE_OUTBOUND_CHANNEL_SIZE: usize = 100;
-const CERTIFICATE_INBOUND_CHANNEL_SIZE: usize = 100;
-const TCE_PROXY_COMMAND_CHANNEL_SIZE: usize = 100;
+const CERTIFICATE_OUTBOUND_CHANNEL_SIZE: usize = 1024 * 10;
+const CERTIFICATE_INBOUND_CHANNEL_SIZE: usize = 1024 * 10;
+const TCE_PROXY_COMMAND_CHANNEL_SIZE: usize = 1024 * 10;
 
 // Maximum backoff retry timeout in seconds (1 hour)
 const TCE_SUBMIT_CERTIFICATE_BACKOFF_TIMEOUT: Duration = Duration::from_secs(3600);
diff --git a/crates/topos-tce-proxy/src/worker.rs b/crates/topos-tce-proxy/src/worker.rs
index 0869893af..0011e05dc 100644
--- a/crates/topos-tce-proxy/src/worker.rs
+++ b/crates/topos-tce-proxy/src/worker.rs
@@ -22,8 +22,8 @@ impl TceProxyWorker {
     /// Construct a new [`TceProxyWorker`] with a 128 items deep channel to send commands to and receive events from a TCE node on the given subnet.
     /// The worker holds a [`crate::client::TceClient`]
     pub async fn new(config: TceProxyConfig) -> Result<(Self, Option<(Certificate, u64)>), Error> {
-        let (command_sender, mut command_rcv) = mpsc::channel::<TceProxyCommand>(128);
-        let (evt_sender, evt_rcv) = mpsc::channel::<TceProxyEvent>(128);
+        let (command_sender, mut command_rcv) = mpsc::channel::<TceProxyCommand>(1024 * 20);
+        let (evt_sender, evt_rcv) = mpsc::channel::<TceProxyEvent>(1024 * 20);
         let (tce_client_shutdown_channel, shutdown_receiver) =
             mpsc::channel::<oneshot::Sender<()>>(1);
 
diff --git a/crates/topos-tce-synchronizer/src/builder.rs b/crates/topos-tce-synchronizer/src/builder.rs
index a7b70e08a..c85bc88d5 100644
--- a/crates/topos-tce-synchronizer/src/builder.rs
+++ b/crates/topos-tce-synchronizer/src/builder.rs
@@ -29,7 +29,7 @@ impl Default for SynchronizerBuilder {
             network_client: None,
             store: None,
             config: SynchronizationConfig::default(),
-            event_channel_size: 100,
+            event_channel_size: 1024 * 20,
             shutdown: None,
         }
     }
diff --git a/crates/topos-tce/src/app_context.rs b/crates/topos-tce/src/app_context.rs
index fedc50b66..f7478c508 100644
--- a/crates/topos-tce/src/app_context.rs
+++ b/crates/topos-tce/src/app_context.rs
@@ -69,7 +69,7 @@ impl AppContext {
         validator_store: Arc<ValidatorStore>,
         api_context: RuntimeContext,
     ) -> (Self, mpsc::Receiver<Events>) {
-        let (events, receiver) = mpsc::channel(100);
+        let (events, receiver) = mpsc::channel(1024 * 20);
         (
             Self {
                 is_validator,