diff --git a/session/session.go b/session/session.go
index 7ce2c78..3a8f96f 100644
--- a/session/session.go
+++ b/session/session.go
@@ -759,6 +759,13 @@ func (s *Manager) restoreAllSessions() {
 	if err != nil {
 		return
 	}
+
+	// Load all persisted session JSONs (fast, sequential disk reads)
+	type loadedSession struct {
+		ps   *agent.PersistedSession
+		name string
+	}
+	var loaded []loadedSession
 	for _, e := range entries {
 		if !strings.HasSuffix(e.Name(), ".json") {
 			continue
@@ -769,13 +776,25 @@ func (s *Manager) restoreAllSessions() {
 			s.cfg.Log.Error("restore session %s: %v", e.Name(), err)
 			continue
 		}
-		if err := s.restoreSession(ps); err != nil {
-			s.cfg.Log.Error("restore session %s: %v", ps.ID, err)
-			continue
-		}
-		// Keep active snapshots until the session is explicitly killed.
-		// Shutdown refreshes these files with the latest state.
+		loaded = append(loaded, loadedSession{ps: ps, name: e.Name()})
 	}
+
+	if len(loaded) == 0 {
+		return
+	}
+
+	// Restore sessions in parallel
+	var wg sync.WaitGroup
+	for _, ls := range loaded {
+		wg.Add(1)
+		go func(ls loadedSession) {
+			defer wg.Done()
+			if err := s.restoreSession(ls.ps); err != nil {
+				s.cfg.Log.Error("restore session %s: %v", ls.ps.ID, err)
+			}
+		}(ls)
+	}
+	wg.Wait()
 }
 
 func (s *Manager) restoreSession(ps *agent.PersistedSession) error {