Welcome to our performance blog
Veröffentlicht Februar, 2026 | 5 Min Lesezeit
Performance issues often arise in everyday life. They may be subtle, but they are frustrating.
This blog is dedicated to precisely these moments and what lies behind them.
You open the ticket system in the morning, click on “My Tasks” – and wait. The loading indicator spins, the page remains blank. After a few seconds the list finally appears, but without filters. Another click, another wait. Thoughts race through your mind: Is it me? The network? The system? Just as you’re about to take a screenshot for support, the site loads instantly. It’s a scenario many are familiar with. But what exactly is the system doing during those seconds of waiting?
After moments like these, there’s nothing to do but shrug your shoulders:
– “The system is just slow.”
– „It´s probably busy today.
– „Nothing can be done about it.“
Bad Performance is not an act of provenance.
It does not need to be accepted.
No matter how slow the system responds, there is always something happening in the background: requests await resources, databases suffer from backlog, function calls block each other, or load affects components which were never expected to be exposed to it. The waiting time is not a whim of technology. It is a symptom.
Performance-issues only rarely stem from one single “big” error. Usually they are products of many separate decisions working against each other. Not by design, but by the drive to improve the system in increments: an additional service call, a missing index, a synchronous process at the wrong place, … While the system has enough resources these small incongruities are not even noticeable. During work, when the system is used by multiple people, they become very visible.
However, there is a bright side to this:
When there are reasons for bad system behaviour, these reasons can be analysed and improved. This is where performance-testing and -engineering come into play. They help us to understand where time gets lost, why systems behave differently under load, and how to spot those issues before they become frustrating.
Follow this blog to learn more about performance-engineering. We will talk about concepts and problems of performance engineering. Along the way we explain performance-terminology and analyse performance issues that made it into media.