Review: Kaspersky’s Impact on Internet Speed and My Frustrating Experience

I recently encountered a significant issue with Kaspersky antivirus that I feel compelled to share. After switching to Kaspersky, I noticed a staggering drop in my internet speed—almost 60%. As soon as I closed the software, my internet performance returned to normal levels. This sudden slowdown is utterly unacceptable for someone like me, who frequently downloads large files and relies on a stable and fast connection for productivity.

In the past, I used BitDefender with no issues whatsoever; my internet speeds remained consistent, even with all protection features enabled. After my BitDefender license expired, I decided to give Kaspersky a try. However, this move has proven to be a major mistake. I even conducted tests with other antivirus programs like McAfee, Norton, and Avira, all of which maintained my internet speed without any noticeable drops.

It has become clear that the issue lies solely with Kaspersky. I installed it on my work computer as well, and the results were identical. In an attempt to troubleshoot, I turned off various protection features within Kaspersky one by one, but there was no definitive improvement. Even when all features were disabled, my connection speed didn’t recover. Given that BitDefender offers comparable features without the speed penalty, this raised many questions about Kaspersky’s software efficiency.

Despite reaching out to Kaspersky’s technical support team for assistance, my experience was disappointing. They were unable to provide a satisfactory solution and ultimately refused to issue a refund. As a result, I’m now stuck with a product that has not only failed to meet my needs but has also caused significant frustration.

I urge anyone considering antivirus options to steer clear of Kaspersky, as it’s clear that something doesn’t add up with their software’s performance. If anyone has suggestions for alternatives or solutions, I would greatly appreciate your input.

For those who might assume that a 400 Mbps connection is adequate, let me clarify—I invest a considerable amount into my internet service because it is essential for my daily tasks. A 60% reduction in speed from my antivirus is simply unacceptable, regardless of the context.

If you’re interested, I’ve included some screenshots of my speed tests demonstrating the issue: