Front end processing feasibility (Filesize and processing time)

[drmax24]

What file size can be converted "quickly enough"? I can see that a 1 MB file is processed quickly.
Is it correct to say that this library can process files below 50 MB in seconds on the modern desktop?

We try to move processing to the front end for our customers. But is it feasible for files around 30-45 MB?
10 seconds of processing is okay. 15 seconds is also fine. 30 seconds or more would be too much...

I was pretty sure about decent customer experience for 30-45 MB files, but now I fear that it takes much longer than 10 seconds

[KyGuy2002]

Im sure it depends on what FFmpeg functions you are using, but i am using the concat demuxer and able to process files totaling 1.7gb (30 files, 1.7gb total) in about 30 seconds. For files that are 45mb total (6 files), it takes like less than 5 seconds. This is running on a mid tier laptop with 16gb of ram.