Most gamers avoid installing antivirus software for one reason: fear it'll tank their frame rate. That fear is mostly outdated, but not entirely — some security suites still inject overhead you can feel mid-match. Avast One is one of the more popular all-in-one options right now, bundling malware protection, a VPN, and PC cleanup tools into a single app. Here's what it actually does to performance, what its VPN is and isn't good for, and whether the price makes sense if you're buying it mainly to protect a gaming rig.
Does Avast One actually slow down your FPS?
This is the part gamers care about most, and the independent testing backs Avast up here. In AV-TEST's March–April 2026 evaluation round, Avast One scored a perfect 18/18 across protection, performance, and usability — performance being the category that specifically measures system slowdown during everyday tasks like launching apps, copying files, and browsing. AV-Comparatives separately awarded Avast One a Gold rating in its Performance category, and the product carries an AV-Comparatives "Top Rated 2025" badge on the strength of that testing.
In practice, that means Avast's background scanning engine is lightweight enough that it shouldn't visibly eat into your FPS during a match. Most modern antivirus suites, Avast included, also ship a dedicated "Do Not Disturb" or gaming mode that automatically suppresses scan schedules, update pop-ups, and notification banners when it detects a full-screen application running. Turn that on explicitly rather than assuming it triggers reliably on every game — Alt-tabbing out mid-session to confirm it's active the first time you play a new title is worth the ten seconds.
The caveat: real-time protection still uses some CPU and disk I/O by design, since it has to inspect files as they're written and read. On a mid-range or older CPU that's already the bottleneck in your build, you may notice more stutter during a full system scan than on a fast modern chip. Scheduling deep scans for when you're not playing — overnight, or whenever you close the PC down — avoids that entirely.
What you get in the VPN (and where it falls short)
Avast One's SecureLine VPN is built in, not a separate purchase, which is one of the suite's better selling points if you also want basic privacy on public Wi-Fi or want to mask your IP while queuing into a game server. It gives you roughly 700 servers spread across about 35 countries, with DNS leak protection and a reasonable set of custom settings for a consumer-grade VPN.
Where it's weaker: torrenting isn't supported on the VPN, and streaming unblocking is inconsistent. It reliably gets you into services like Amazon Prime Video and Paramount+, but struggles with Netflix and doesn't unblock Hulu at all. If your only reason for wanting a VPN is dodging regional game launches or unblocking a specific streaming catalog, dedicated VPN services will serve you better. If you just want a lightweight, no-fuss VPN bundled with your antivirus for everyday privacy, it's a genuinely useful inclusion rather than a checkbox feature.
One notable gap: Avast One doesn't include a password manager, which most competing all-in-one suites at this price point do bundle. If you already use a separate password manager, this won't matter to you.
Pricing tiers: what you actually pay
| Plan | Coverage | First year | Renews at |
|---|---|---|---|
| Avast One Free | 1 device | $0 | $0 |
| Premium Security | 1 PC + 1 mobile | ~$49.08 | ~$77.99/yr |
| Premium Security | 10 devices | ~$69.48 | ~$99.99/yr |
| Ultimate (adds VPN + cleanup extras) | Varies by bundle | from ~$49.99/yr | check current offer |
The free tier covers real-time antivirus, scam and phishing blocking, a Wi-Fi network check, and basic cleanup — genuinely usable as a baseline, not a crippled trial. The jump to Premium Security mainly buys you ransomware protection, webcam/mic blocking, and a firewall, while the Ultimate-tier bundles add the full VPN and deeper cleanup tools. Like most consumer security suites, the advertised first-year price is a discount off the renewal rate, so check what you'll actually be billed in year two before committing to a multi-year plan. A 60-day free trial and 30-day money-back guarantee are both available if you want to test it on your own rig before paying.
Verdict: who should buy Avast One
If you want one app that covers antivirus, a serviceable VPN, and basic PC cleanup without hand-picking three separate tools, Avast One is a solid, well-tested pick — the performance scores back up that it won't be the thing killing your FPS. It's a weaker choice specifically if VPN streaming unblocking or torrenting support are must-haves for you, or if you were hoping to drop a separate password manager in the process. For most gamers looking for one less thing to think about while their PC handles background protection, the free tier is worth trying first, with Premium Security as the natural upgrade once you decide you want ransomware protection and the VPN full-time.
