diff --git a/cesnet-central/deployments/fullhub.yaml b/cesnet-central/deployments/fullhub.yaml
index cbc6b60da4fc6916d52c7b3ad9226376e7394839..999915cda880e652e9d5642115af1e32384dd006 100644
--- a/cesnet-central/deployments/fullhub.yaml
+++ b/cesnet-central/deployments/fullhub.yaml
@@ -236,7 +236,7 @@ hub:
                         {"name": "WEBDAV_VENDOR", "value": "other"},
                         # XXX: strict permissions needed for .local/share/jupyter/runtime/jupyter_cookie_secret
                         # quicker directory cache and polling
-                        {"name": "MOUNT_OPTS", "value": "--file-perms=0600 --dir-perms=0770 --dir-cache-time=1m0s --poll-interval=0m30s"},
+                        {"name": "MOUNT_OPTS", "value": "--file-perms=0600 --dir-perms=0770 --dir-cache-time=1m0s --poll-interval=0m20s"},
                         {"name": "MOUNT_PATH", "value": "/owncloud"},
                         # default mode is "full"
                         {"name": "VFS_CACHE_MODE", "value": "full"},
diff --git a/demo/deployments/hub.yaml b/demo/deployments/hub.yaml
index fff50eeafbddbdabb106f52eea3bd47fecec85ef..70e9dece234c71c7a0ec2d626ba8c2a769a3709a 100644
--- a/demo/deployments/hub.yaml
+++ b/demo/deployments/hub.yaml
@@ -258,8 +258,11 @@ hub:
                         {"name": "WEBDAV_URL", "value": "https://ocis.aaitest.owncloud.works/remote.php/webdav/"},
                         {"name": "WEBDAV_VENDOR", "value": "other"},
                         # XXX: strict permissions needed for .local/share/jupyter/runtime/jupyter_cookie_secret
-                        {"name": "MOUNT_OPTS", "value": "--file-perms=0600 --dir-perms=0770"},
+                        # quicker directory cache and polling
+                        {"name": "MOUNT_OPTS", "value": "--file-perms=0600 --dir-perms=0770 --dir-cache-time=1m0s --poll-interval=0m20s"},
                         {"name": "MOUNT_PATH", "value": "/owncloud"},
+                        # default mode is "full"
+                        {"name": "VFS_CACHE_MODE", "value": "full"},
                     ],
                     "resources": self.sidecar_resources,
                     "securityContext": {