Shotcut

Shotcut is an open source utility that enables you to easily edit your homemade videos on your Mac computer.

The program is compatible with a wide variety of video formats, gives you access to multiple editing options, and provides you with quality output files in no time.

This tool might prove to be of good use if you need to quickly extract a certain segment from movies, convert your homemade video to another format, and apply multiple types of visual effects to your videos. The output settings are very simple to configure, so you don't need much video editing experience in order to use Shotcut.

In my testing, I imported an MTS file. I used the program to trim the video, apply a couple of visual effects, and convert the resulting movie to the MP4 format. The tool completed all of these tasks without slowing down my Mac.

The only thing I'd add would be the ability to import and attach subtitle files to the imported videos. Other than that, nothing bad can be said about Shotcut.

Hence, it's worth giving Shotcut a try if you're looking for a simple and effective video editing tool.