It's not unusual for a VPN service to cause a slight reduction in internet speed, since encryption and routing add overhead. With AdBlock VPN 4.0's upgraded infrastructure, this impact should be minimal and unnoticeable during normal use.
What to check
If you're experiencing a significant and noticeable slowdown, one or more of the following may be the cause:
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Wi-Fi congestion: You're in an environment where many Wi-Fi networks or devices are operating in a confined space.
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Base connection speed: Your internet connection may already be at its limit, even without a VPN.
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Device or router limitations: Your PC, laptop, tablet, smartphone, or wireless router may have hardware constraints that limit speed.
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ISP routing quality: Your Internet Service Provider may offer inconsistent speeds across different regions or routes.
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Distance from your router: The farther you are from your router, the weaker the signal.
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Physical obstructions: Walls and other obstacles between you and your router can reduce signal quality. Position your router to minimize barriers.
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Device load: If your device is already running at high utilization, VPN encryption can add additional strain and slow things down.
Server location matters
With 100+ server locations now available in AdBlock VPN 4.0, you can choose a server closer to your physical location for better speeds. Connecting to a nearby server (e.g., a US user connecting to a US server) will generally be faster than connecting to a server across the globe (e.g., a US user connecting to a server in France).
Tip: Try switching to a different server location if you notice slower speeds — selecting one geographically closer to you often makes a noticeable difference.
Speed test numbers vs. real-world performance
You may notice lower numbers on a speed test while connected to AdBlock VPN. This is normal — the encryption process adds slight overhead that tools like Speedtest.net measure, but which most users won't notice during everyday browsing, streaming, or downloading. If your internet feels fast in practice, there's nothing to worry about.