Christian Jongeneel

The Theme and Plugin Profiler uses a little known PHP feature known as ticks. Basically, this is an internal event that occurs every time a code block is executed, marked (roughly) by a function call or curly {} brackets.
The plugin uses ticks to collect a list of the functions that were executed, how often they were called and how much time they took in total. The plugin’s option page gives some filters to select and sort the results. This will give developers clues which parts of their code demand scrutiny.

Theme and Plugin (T&P) Profiler

Make your theme or plugin faster, greener and smarter with this plugin, that will tell you which of your functions is eating up most server time.

Tom Baumgarten

SPS is a simple plugin to create a slider of pictures and display it with a shortcode or PHP code. Few options to keep it simple, but fast and efficient. Some hooks to improve the slider or to configure it more specifically. Good plugin for developers, with possibility to control what your client can edit or not in the advanced options. 
Compatible with ACF, you can put field groups for every slide. It’s possible to override template files for displaying the fields.

Simple Pictures Slider

A simple plugin to display a picture slider. Light, efficient and compatible with ACF. Best for developers.

Theme and Plugin (T&P) Profiler vs Simple Pictures Slider