How to Reduce Lag on Fibre
Stop the stutter. Practical tips for gamers and remote workers to eliminate lag and jitter.
How to Reduce Lag on Fibre: 10 Practical Fixes
Executive Summary
"Lag" is the general term for that frustrating delay between an action and a reaction on the internet. Whether you're being "rubber-banded" in a game or your Zoom call is freezing, lag is usually caused by a combination of local hardware issues and ISP routing. This guide provides a checklist of fixes to get your connection running as smoothly as possible.
The Two Types of Lag
- Input Lag: The delay between your mouse/keyboard and the screen (usually a PC/Monitor issue).
- Network Lag: The delay between your PC and the internet server (the focus of this guide).
Top 10 Ways to Reduce Lag
1. Use an Ethernet Cable
We cannot stress this enough. Wi-Fi is prone to interference and "jitter" spikes. A physical cable is the only way to ensure a stable, low-lag connection.
2. Enable QoS (Quality of Service)
Most modern routers have a QoS setting. This allows you to tell the router to prioritize "Gaming" or "VoIP" traffic over "Downloads" or "Streaming."
3. Change your DNS
Switching from your ISP's default DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8) can reduce the time it takes to "find" servers.
4. Close Background Syncing
Apps like Dropbox, Google Drive, and OneDrive are "lag monsters." They often upload small chunks of data constantly, which can spike your ping.
5. Check for "Bufferbloat"
Bufferbloat happens when your router's memory gets full, causing data to wait in line. Upgrading to a router with a faster processor can fix this.
6. Use a Local Server
Always ensure you are playing on South African servers if they are available.
7. Update your Network Drivers
Ensure your PC's network card has the latest drivers from the manufacturer (Intel, Realtek, etc.).
8. Disable "Green Ethernet"
In your PC's device manager, disable power-saving features on your network card, which can sometimes cause micro-stutters.
9. Check for Malware
Some viruses use your connection to send spam or mine crypto, which will significantly lag your line.
10. Switch to a Gaming-Focused ISP
If all else fails, your ISP's routing might be the problem. Some ISPs specialize in low-latency paths.
Comparison: Lag Fix Impact
| Fix | Difficulty | Impact |
|---|---|---|
| Ethernet Cable | Easy | Extreme |
| QoS Settings | Medium | High |
| DNS Change | Easy | Low |
| New Router | Hard (Cost) | High |
Practical Checklist: The "Lag-Free" Audit
- Run a Bufferbloat Test: Use waveform.com/tools/bufferbloat.
- Check Jitter: Ensure your jitter is <5ms on a wired connection.
- Inspect Cables: Ensure you aren't using an old Cat5 cable (look for Cat5e or Cat6).
- Monitor Temperatures: An overheating router will throttle itself and cause lag.
Next Steps
Still lagging? It might be your provider.
Related Guides
Frequently Asked Questions
Can a faster line (1Gbps) fix my lag?
Only if your lag was caused by someone else in the house using up all the bandwidth. If you are the only one online, 1Gbps won't have lower lag than 50Mbps.
Why do I only lag at night?
This is 'Peak Congestion.' Your ISP's network is overloaded during the evening rush. This is a provider issue, not a hardware one.
Is a 'Gaming VPN' worth it?
Only if your ISP's routing is very poor. In most cases, a VPN will actually *increase* your lag.
Next Steps
Ready to put this knowledge into practice? Use our tools to find the best fibre connection for your home or office.