how to set the video limit limit that appears when import.

So, here it is.
when we do import videos with xvideos importer plugin …
example using the page URL section ..
usually 24 maximum videos appear ..

can I just change it to 15-20 … because often there is an import failure or not all videos that appear successfully enter my wordpress ..

or is there any suggestion for you to make the video import process fast ??

with a note: I check the JWplayer section and save the thumbnail to my server

I use VPS with 6GB ram, the latest version of wordpress, my limit memory is 1GB max setting …

please give your best advice so that the import process is faster

please help thanks