I have a requirement to manually test the way in which our websites perform across a range of bandwidth and hardware specs. The testing will be manual, as there are a number of subjective factors that need to be monitored.
Historically, I've used Fiddler and Chrome Dev tools to simulate bandwidth issues and (I think) it was WinThrottle I used back in the day to hamper CPU performance but that's now extremely out of date.
Are there any applications that you use, or have used, that you'd recommend to simulate a low performance set up?
I'm primarily testing on Windows based devices, although testing on Linux and Macs would be a bonus.