diff --git a/ZelBack/src/lib/socketServer.js b/ZelBack/src/lib/socketServer.js
index 40bf67fed..423487a40 100644
--- a/ZelBack/src/lib/socketServer.js
+++ b/ZelBack/src/lib/socketServer.js
@@ -22,7 +22,7 @@ class FluxWebsocketServer {
       serverMaxWindowBits: 15, // Defaults to negotiated value.
       clientMaxWindowBits: 15, // Defaults to negotiated value.
       // Below options specified as default values.
-      concurrencyLimit: 3, // Limits zlib concurrency for perf.
+      concurrencyLimit: 2, // Limits zlib concurrency for perf.
       threshold: 128, // Size (in bytes) below which messages
     // should not be compressed if context takeover is disabled.
     },
diff --git a/ZelBack/src/services/fluxCommunication.js b/ZelBack/src/services/fluxCommunication.js
index 16f0aa20c..713d11079 100644
--- a/ZelBack/src/services/fluxCommunication.js
+++ b/ZelBack/src/services/fluxCommunication.js
@@ -694,7 +694,7 @@ async function initiateAndHandleConnection(connection) {
         serverMaxWindowBits: 15, // Defaults to negotiated value.
         clientMaxWindowBits: 15, // Defaults to negotiated value.
         // Below options specified as default values.
-        concurrencyLimit: 3, // Limits zlib concurrency for perf.
+        concurrencyLimit: 2, // Limits zlib concurrency for perf.
         threshold: 128, // Size (in bytes) below which messages
       // should not be compressed if context takeover is disabled.
       },