diff --git a/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.cpp b/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.cpp
index f55bbb0c0..a7de911c9 100644
--- a/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.cpp
+++ b/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.cpp
@@ -23,6 +23,7 @@
 #include <QKeyEvent>
 #include <QScrollBar>
 #include <QPainter>
+#include <QTimer>
 
 #include "util/qtthreadsutils.h"
 #include "util/misc.h"
@@ -374,6 +375,12 @@ GxsForumThreadWidget::GxsForumThreadWidget(const RsGxsGroupId &forumId, QWidget
     ui->threadTreeWidget->enableColumnCustomize(true);
 #endif
 
+    // Single-shot timer used to coalesce the full-forum reloads requested by
+    // incoming GXS events (see scheduleForumReload()).
+    mDeferredReloadTimer = new QTimer(this);
+    mDeferredReloadTimer->setSingleShot(true);
+    connect(mDeferredReloadTimer, &QTimer::timeout, this, [this]() { updateDisplay(true); });
+
     mEventHandlerId = 0;
     // Needs to be asynced because this function is called by another thread!
     rsEvents->registerEventsHandler(
@@ -402,7 +409,7 @@ void GxsForumThreadWidget::handleEvent_main_thread(std::shared_ptr<const RsEvent
         case RsForumEventCode::PINNED_POSTS_CHANGED:
         case RsForumEventCode::SYNC_PARAMETERS_UPDATED:
             if(e->mForumGroupId == mForumGroup.mMeta.mGroupId)
-                updateDisplay(true);
+                scheduleForumReload();
             break;
 
         case RsForumEventCode::SUBSCRIBE_STATUS_CHANGED:
@@ -424,6 +431,16 @@ void GxsForumThreadWidget::handleEvent_main_thread(std::shared_ptr<const RsEvent
     }
 }
 
+void GxsForumThreadWidget::scheduleForumReload()
+{
+    // Coalesce bursts of incoming events into a single reload. 300 ms is short
+    // enough to feel immediate yet long enough to absorb a whole sync batch, so
+    // the expensive updateForum()/setPosts() cycle runs once instead of once per
+    // post. Restarting the timer on every event pushes the reload back until the
+    // events settle.
+    mDeferredReloadTimer->start(300);
+}
+
 void GxsForumThreadWidget::showForumInfo()
 {
     mThreadId.clear();
@@ -596,6 +613,10 @@ void GxsForumThreadWidget::updateDisplay(bool complete)
     }
     if(complete) 	// need to update the group data, reload the messages etc.
     {
+        // We are reloading now, so drop any reload still pending in the coalescing
+        // timer (e.g. queued by events for a forum we just switched away from).
+        mDeferredReloadTimer->stop();
+
         saveExpandedItems(mSavedExpandedMessages);
 
         if(groupId() != mThreadModel->currentGroupId())
diff --git a/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.h b/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.h
index 8e6b1c01b..130f70bd0 100644
--- a/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.h
+++ b/retroshare-gui/src/gui/gxsforums/GxsForumThreadWidget.h
@@ -29,6 +29,7 @@
 #include "util/FontSizeHandler.h"
 
 class QSortFilterProxyModel;
+class QTimer;
 class QTreeWidgetItem;
 class RSTreeWidgetItemCompareRole;
 class GxsForumsFillThread;
@@ -197,6 +198,13 @@ private:
 
 	void handleEvent_main_thread(std::shared_ptr<const RsEvent> event);
 
+	// Coalesce the full-forum reloads triggered by incoming GXS events: a sync
+	// burst delivers many NEW_MESSAGE events in a row, and reloading the whole
+	// forum for each one froze the UI for seconds and reset the model out from
+	// under the user's selection. Restart a single-shot timer instead so a burst
+	// results in one reload once the events settle.
+	void scheduleForumReload();
+
 private:
 	void setForumDescriptionLoading();
 	void clearForumDescription();
@@ -239,6 +247,8 @@ private:
 
     Ui::GxsForumThreadWidget *ui;
     RsEventsHandlerId_t mEventHandlerId;
+
+    QTimer *mDeferredReloadTimer;
 };
 
 #endif // GXSFORUMTHREADWIDGET_H