--- title: "I changed one router setting, and the lag during big downloads just disappeared" url: https://daily.dev/posts/i-changed-one-router-setting-and-the-lag-during-big-downloads-just-disappeared-qjgprvaql source_url: https://www.xda-developers.com/changed-one-router-setting-and-lag-during-big-downloads-just-disappeared type: article source: "XDA Developers" published: 2026-07-05T23:05:27.755Z updated: 2026-07-05T23:05:50.990Z tags: ["networking"] reading_time: 6 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # I changed one router setting, and the lag during big downloads just disappeared **[XDA Developers](https://daily.dev/sources/xda-developers)** · 6 min read · 0 upvotes · 0 comments ## Summary Lag during online gaming caused by simultaneous downloads is a congestion problem, not a bandwidth problem. Basic router QoS can prioritize devices (e.g., putting your gaming PC at highest priority), which fixes lag when other devices are the bandwidth hogs. For older routers without adaptive QoS, flashing OpenWrt and enabling SQM (Smart Queue Management) solves the deeper issue of bufferbloat by scheduling individual traffic flows fairly. SQM is CPU-intensive and may reduce throughput on older hardware — switching from CAKE to fq_codel helps. For most users with modern routers, enabling adaptive QoS is sufficient without needing OpenWrt. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [QoS is the one setting that fixes the lag you blame your ISP for, and it takes two minutes to enable](https://daily.dev/posts/qos-is-the-one-setting-that-fixes-the-lag-you-blame-your-isp-for-and-it-takes-two-minutes-to-enable-a9fxzzwts) · XDA Developers · 0 upvotes · 0 comments - [Your router's QoS settings are hurting more than helping, and the fix takes 30 seconds](https://daily.dev/posts/your-router-s-qos-settings-are-hurting-more-than-helping-and-the-fix-takes-30-seconds-gnmyqqeha) · XDA Developers · 1 upvotes · 0 comments - [I finally fixed my gigabit internet with a setting that made it slower on purpose](https://daily.dev/posts/i-finally-fixed-my-gigabit-internet-with-a-setting-that-made-it-slower-on-purpose-jaadfsbl4) · XDA Developers · 0 upvotes · 0 comments - [The gaming mode on your router is a marketing lie — here’s what actually lowers your ping](https://daily.dev/posts/the-gaming-mode-on-your-router-is-a-marketing-lie-here-s-what-actually-lowers-your-ping-rq45csbxy) · XDA Developers · 2 upvotes · 0 comments - [Your 500 Mbps internet can feel worse than 100 Mbps, and the reason is not what you think](https://daily.dev/posts/your-500-mbps-internet-can-feel-worse-than-100-mbps-and-the-reason-is-not-what-you-think-dxstgpl0z) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#networking](https://daily.dev/tags/networking) [View this post on daily.dev](https://daily.dev/posts/i-changed-one-router-setting-and-the-lag-during-big-downloads-just-disappeared-qjgprvaql)