From ce7fe9609721d63ab37ff8ae18d94346b18e5f7f Mon Sep 17 00:00:00 2001
From: 2 * r + 2 * t <61896496+soramanew@users.noreply.github.com>
Date: Thu, 12 Mar 2026 22:22:50 +1100
Subject: [PATCH] networkusage: avoid intermediate array copy for history
 updates

---
 services/NetworkUsage.qml | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/services/NetworkUsage.qml b/services/NetworkUsage.qml
index 502ec3ae..a9406480 100644
--- a/services/NetworkUsage.qml
+++ b/services/NetworkUsage.qml
@@ -192,21 +192,13 @@ Singleton {
                 const maxHistory = root.historyLength + 1;
 
                 if (root._downloadSpeed >= 0 && isFinite(root._downloadSpeed)) {
-                    let newDownHist = root._downloadHistory.slice();
-                    newDownHist.push(root._downloadSpeed);
-                    if (newDownHist.length > maxHistory) {
-                        newDownHist.shift();
-                    }
-                    root._downloadHistory = newDownHist;
+                    const dh = root._downloadHistory;
+                    root._downloadHistory = dh.length >= maxHistory ? [...dh.slice(1), root._downloadSpeed] : [...dh, root._downloadSpeed];
                 }
 
                 if (root._uploadSpeed >= 0 && isFinite(root._uploadSpeed)) {
-                    let newUpHist = root._uploadHistory.slice();
-                    newUpHist.push(root._uploadSpeed);
-                    if (newUpHist.length > maxHistory) {
-                        newUpHist.shift();
-                    }
-                    root._uploadHistory = newUpHist;
+                    const uh = root._uploadHistory;
+                    root._uploadHistory = uh.length >= maxHistory ? [...uh.slice(1), root._uploadSpeed] : [...uh, root._uploadSpeed];
                 }
             }