Please any Video expert here? I need help with cutting videos into cunks and merging them.

I need help with this...
Let's assume I have 3 video clips. I want to divide each video into 10 secs and merge them by alternating them.
For instance, 10 secs from clip1 with 10 secs from clip2 with 10 secs from clip3 then the next 10 secs from clip1 and so on.

I got a script from a YouTube video using moviepy. It was way too slow. Like 25 mins to generate 30 secs video clip.

I can do this manually in capcut, but I am looking for a way to make it faster.

Please, is there any tool or script that can help with this?

You will lose more time to find something that will automate this process than do this manually. How many videos like this you need and how long videos?

I suggest using an application like InShot. I find it much easier and more intuitive to use than CapCut, and it is available for purchase once off for a decent rate compared to the rest who offer that... there is also a cracked version of the anroid apk online if you are short on money.