Performance on Simple Enough Blog

Upgrading Your Computer Components: Method, Compatibility, Benchmarks… and Mistakes to Avoid

Wed, 11 Feb 2026 10:00:00 +0100

Upgrading Your Computer Components: Method, Compatibility, and Benchmarks

Upgrading your computer hardware often feels like a simple and logical process:
you identify what feels slow, buy a more powerful component, and install it.

In practice, many upgrades:

bring no noticeable performance gain,
introduce compatibility issues,
or simply move the problem elsewhere.

So how should you approach it properly?

Latency: Understanding, Perceiving, and Mastering an Invisible Delay

Wed, 28 Jan 2026 09:00:00 +0100

Latency is one of those ubiquitous terms in computing, often used to explain a negative feeling — “it lags”, “it’s slow” — without its real meaning being clearly understood.
Yet latency is neither a bug nor a simple performance issue: it is a structural constraint of modern computer systems.

This article offers a comprehensive view of latency:

what it is from a general perspective,
its technical definition,
how it is perceived by users,
the trade-offs it imposes,
and above all, how to master it architecturally.

I. What Is Latency?

1. General definition

In its simplest sense, latency refers to the waiting time between an action and the system’s first reaction.

“It’s slow”, “it lags”, “it bugs”: but in the end, what does it really mean?

Tue, 30 Dec 2025 10:00:00 +0100

Introduction

In a family, at work, or within a technical team, it is very common to hear: “it’s slow”, “it lags”, or “it bugs”. These expressions are often used interchangeably… wrongly. They mix together problems that actually have nothing to do with each other.

Understanding the difference between these three situations makes it possible to explain what is happening more clearly, to react more quickly, and above all to avoid bad solutions. A performance issue is not solved like a bug, and a bug never disappears just because the machine has been made more powerful.

Optimizing Flutter Performance: build(), keys, and const Widgets

Tue, 15 Jul 2025 09:24:42 +0200

This article proposes performance improvements by focusing on three fundamental aspects:

The build() cycle
Keys
Const widgets

I. The build() cycle: understanding to optimize

The build() process is at the core of rendering in Flutter. When a state changes or a widget is rebuilt, the build() method is called. Mismanaging this method can cause significant slowdowns.

A. When is build() triggered?

During the first widget creation.
When calling setState().
When a parent widget is rebuilt.

B. Techniques to reduce the build() impact

Use const in the constructor: Creates immutable instances.
Break down the build: Split the UI into subcomponents to reduce the impact zone.
Avoid heavy calculations in build(): Delegate tasks to pre-computed functions or separate methods.

Example: Optimization with subcomponents