diff --git a/CHANGELOG.md b/CHANGELOG.md
index b19157e8..45ba6ac7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ TODO: tag custom ConverseJS, and update build-conversejs.sh.
 
 * #177: streamer's task/to-do lists: streamers, and their room's moderators, can handle task lists directly. This can be used to handle viewers questions, moderation actions, ... More info in the [tasks documentation](https://livingston.frama.io/peertube-plugin-livechat/fr/documentation/user/streamers/tasks/).
 * #385: new way of managing chat access rights. Now streamers are owner of their chat rooms. Peertube admins/moderators are not by default, so that their identities are not leaking. But they have a button to promote as chat room owner, if they need to take action. Please note that there is a migration script that will remove all Peertube admins/moderators affiliations (unless they are video/channel's owner). They can get this access back using the button.
+* #385: the slow mode duration on the channel option page is now a default value for new rooms. Streamers can change the value room per room in the room's configuration.
 
 ### Minor changes and fixes
 
diff --git a/languages/en.yml b/languages/en.yml
index 7c5f924f..49010469 100644
--- a/languages/en.yml
+++ b/languages/en.yml
@@ -365,7 +365,7 @@ livechat_configuration_channel_title: "Channel options"
 livechat_configuration_channel_desc: "You can setup here some options for this channel (moderation policies, ...)."
 livechat_configuration_channel_slow_mode_label: "Slow mode"
 livechat_configuration_channel_slow_mode_desc: |
-  Slow mode value:
+  Slow mode default value:
   <ul>
     <li>0: slow mode disabled</li>
     <li>Any positive integer: users can send a message every X seconds (moderators are not limited)</li>
diff --git a/languages/fr.yml b/languages/fr.yml
index 250bae8c..1878fd5e 100644
--- a/languages/fr.yml
+++ b/languages/fr.yml
@@ -393,7 +393,7 @@ avatar_set_option_abstract: Abstrait
 livechat_configuration_channel_slow_mode_label: Mode lent
 slow_mode_info: Le mode lent est activé, les utilisateur⋅rices peuvent envoyer un
   message toutes les %1$s secondes.
-livechat_configuration_channel_slow_mode_desc: "Valeur du mode lent :\n<ul>\n  <li>0 :
+livechat_configuration_channel_slow_mode_desc: "Valeur par défaut du mode lent :\n<ul>\n  <li>0 :
   mode lent désactivé</li>\n  <li>Tout entier positif : les utilisateur⋅rices peuvent
   envoyer un message toutes les X secondes (les modérateur⋅rices ne sont pas limité⋅es)</li>\n\
   </ul>\n"
diff --git a/server/lib/configuration/channel/init.ts b/server/lib/configuration/channel/init.ts
index 2dcc1d07..7e165619 100644
--- a/server/lib/configuration/channel/init.ts
+++ b/server/lib/configuration/channel/init.ts
@@ -4,7 +4,6 @@ import { fillVideoCustomFields } from '../../custom-fields'
 import { videoHasWebchat } from '../../../../shared/lib/video'
 import { updateProsodyRoom } from '../../prosody/api/manage-rooms'
 import { getChannelInfosById } from '../../database/channel'
-import { getChannelConfigurationOptions, getDefaultChannelConfigurationOptions } from './storage'
 
 /**
  * Register stuffs related to channel configuration
@@ -107,11 +106,8 @@ async function initChannelConfiguration (options: RegisterServerOptions): Promis
           // FIXME: this piece of code should not be in this file (nothing to do with initChannelConfiguration,
           //   but will be more efficient to add here, as we already tested hasChat).
           // Note: no need to await here, would only degrade performances.
-          const channelOptions = await getChannelConfigurationOptions(options, video.channelId) ??
-            getDefaultChannelConfigurationOptions(options)
           updateProsodyRoom(options, video.uuid, {
-            name: video.name,
-            slow_mode_duration: channelOptions.slowMode.duration
+            name: video.name
           }).then(
             () => {},
             (err) => logger.error(err)
@@ -137,11 +133,8 @@ async function initChannelConfiguration (options: RegisterServerOptions): Promis
       if (settings['prosody-room-type'] === 'channel') {
         const jid = 'channel.' + channel.id.toString()
         // Note: no need to await here, would only degrade performances.
-        const channelOptions = await getChannelConfigurationOptions(options, channel.id) ??
-          getDefaultChannelConfigurationOptions(options)
         updateProsodyRoom(options, jid, {
-          name: channel.displayName,
-          slow_mode_duration: channelOptions.slowMode.duration
+          name: channel.displayName
         }).then(
           () => {},
           (err) => logger.error(err)
diff --git a/server/lib/room-channel/room-channel-class.ts b/server/lib/room-channel/room-channel-class.ts
index b1fe14b7..6e5320ae 100644
--- a/server/lib/room-channel/room-channel-class.ts
+++ b/server/lib/room-channel/room-channel-class.ts
@@ -1,7 +1,7 @@
 import type { RegisterServerOptions } from '@peertube/peertube-types'
 import type { RoomConf } from 'xmppjs-chat-bot'
 import { getProsodyDomain } from '../prosody/config/domain'
-import { listProsodyRooms, updateProsodyRoom } from '../prosody/api/manage-rooms'
+import { listProsodyRooms } from '../prosody/api/manage-rooms'
 import { getChannelInfosById } from '../database/channel'
 import { ChannelConfigurationOptions } from '../../../shared/lib/types'
 import {
@@ -288,7 +288,10 @@ class RoomChannel {
     this.logger.info('Syncing...')
     this.isWriting = true
 
-    const prosodyRoomUpdates = new Map<string, Parameters<typeof updateProsodyRoom>[2]>()
+    // Note 2024-05-15: slow_mode_duration becomes a default value.
+    //    We dont need prosodyRoomUpdates anymore. but keeping the code commented,
+    //    if we want to enable again a similar sync.
+    // const prosodyRoomUpdates = new Map<string, Parameters<typeof updateProsodyRoom>[2]>()
 
     try {
       const data = this._serializeData() // must be atomic
@@ -348,12 +351,12 @@ class RoomChannel {
 
         await BotConfiguration.singleton().updateRoom(roomJID, botConf)
 
-        // Now we also must update some room metadata (slow mode duration, ...)
-        // This can be done without waiting for the API call to finish, but we don't want to send thousands of
-        // API calls at the same time. So storing data in a map, and we well launch it sequentially at the end
-        prosodyRoomUpdates.set(roomJID, {
-          slow_mode_duration: channelConfigurationOptions.slowMode.duration
-        })
+        // // Now we also must update some room metadata (slow mode duration, ...)
+        // // This can be done without waiting for the API call to finish, but we don't want to send thousands of
+        // // API calls at the same time. So storing data in a map, and we well launch it sequentially at the end
+        // prosodyRoomUpdates.set(roomJID, {
+        //   slow_mode_duration: channelConfigurationOptions.slowMode.duration
+        // })
 
         this.roomConfToUpdate.delete(roomJID)
       }
@@ -367,22 +370,22 @@ class RoomChannel {
       this.isWriting = false
     }
 
-    if (prosodyRoomUpdates.size) {
-      // Here we don't have to wait.
-      // If it fails (for example because we are turning off prosody), it is not a big deal.
-      // Does not worth the cost to wait.
-      // eslint-disable-next-line @typescript-eslint/no-misused-promises
-      setTimeout(async () => {
-        this.logger.info('Syncing done, but still some data to send to Prosody')
-        for (const [roomJID, data] of prosodyRoomUpdates.entries()) {
-          try {
-            await updateProsodyRoom(this.options, roomJID, data)
-          } catch (err) {
-            this.logger.error(`Failed updating prosody room info: "${err as string}".`)
-          }
-        }
-      }, 0)
-    }
+    // if (prosodyRoomUpdates.size) {
+    //   // Here we don't have to wait.
+    //   // If it fails (for example because we are turning off prosody), it is not a big deal.
+    //   // Does not worth the cost to wait.
+    //   // eslint-disable-next-line @typescript-eslint/no-misused-promises
+    //   setTimeout(async () => {
+    //     this.logger.info('Syncing done, but still some data to send to Prosody')
+    //     for (const [roomJID, data] of prosodyRoomUpdates.entries()) {
+    //       try {
+    //         await updateProsodyRoom(this.options, roomJID, data)
+    //       } catch (err) {
+    //         this.logger.error(`Failed updating prosody room info: "${err as string}".`)
+    //       }
+    //     }
+    //   }, 0)
+    // }
   }
 
   /**