Hello! In this tutorial we will fix your own ASP.NET App! Requirements IDE like Visual Studio/JetBrains Rider .NET >= 10 Base C# skill CPU (manually) Fixing Controller First we need to fix our controller, by removing redundant methods and replacing DateTime to Stopwatch. using System.Diagnostics ; using Microsoft.AspNetCore.Mvc ; namespace ExampleProject ; [ Route ( "[controller]" )] [ ApiController ] public clas...