diff --git a/helm-charts/audioqna/templates/nginx-deployment.yaml b/helm-charts/audioqna/templates/nginx-deployment.yaml
index ec25d6778..d71914335 100644
--- a/helm-charts/audioqna/templates/nginx-deployment.yaml
+++ b/helm-charts/audioqna/templates/nginx-deployment.yaml
@@ -29,6 +29,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
     }
 
diff --git a/helm-charts/chatqna/templates/nginx-deployment.yaml b/helm-charts/chatqna/templates/nginx-deployment.yaml
index c395bea4f..a72e85606 100644
--- a/helm-charts/chatqna/templates/nginx-deployment.yaml
+++ b/helm-charts/chatqna/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
 
         location /v1/dataprep {
diff --git a/helm-charts/chatqna/values.yaml b/helm-charts/chatqna/values.yaml
index 2c77c49f7..2750f0d30 100644
--- a/helm-charts/chatqna/values.yaml
+++ b/helm-charts/chatqna/values.yaml
@@ -53,13 +53,13 @@ tgi:
 guardrails-usvc:
   enabled: false
 
-# If you would like to switch to traditional UI image
-# Uncomment the following lines
-# chatqna-ui:
-#   image:
-#     repository: "opea/chatqna-ui"
-#     tag: "latest"
-#   containerPort: "5173"
+# If you would like to switch to conversation UI image
+# Comment the following lines
+chatqna-ui:
+  image:
+    repository: "opea/chatqna-ui"
+    tag: "latest"
+  containerPort: "5173"
 
 global:
   http_proxy: ""
diff --git a/helm-charts/codegen/templates/nginx-deployment.yaml b/helm-charts/codegen/templates/nginx-deployment.yaml
index 03f956218..a3d1472e5 100644
--- a/helm-charts/codegen/templates/nginx-deployment.yaml
+++ b/helm-charts/codegen/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
     }
 
diff --git a/helm-charts/codetrans/templates/nginx-deployment.yaml b/helm-charts/codetrans/templates/nginx-deployment.yaml
index 6b39f0710..f20dcb73d 100644
--- a/helm-charts/codetrans/templates/nginx-deployment.yaml
+++ b/helm-charts/codetrans/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
     }
 
diff --git a/helm-charts/docsum/templates/nginx-deployment.yaml b/helm-charts/docsum/templates/nginx-deployment.yaml
index 890edac2f..bbb0c4d6f 100644
--- a/helm-charts/docsum/templates/nginx-deployment.yaml
+++ b/helm-charts/docsum/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
     }
 
diff --git a/helm-charts/faqgen/templates/nginx-deployment.yaml b/helm-charts/faqgen/templates/nginx-deployment.yaml
index 969b63c2a..1c127511e 100644
--- a/helm-charts/faqgen/templates/nginx-deployment.yaml
+++ b/helm-charts/faqgen/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
     }
 
diff --git a/helm-charts/visualqna/templates/nginx-deployment.yaml b/helm-charts/visualqna/templates/nginx-deployment.yaml
index 250291472..b1d4a86cc 100644
--- a/helm-charts/visualqna/templates/nginx-deployment.yaml
+++ b/helm-charts/visualqna/templates/nginx-deployment.yaml
@@ -27,6 +27,11 @@ data:
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-Forwarded-Proto $scheme;
+
+            proxy_buffering off;
+            proxy_cache off;
+            proxy_request_buffering off;
+            gzip off;
         }
 
     }