Various factors contribute to the encoding speed. For instance, the kind of device you use will affect the speed. If the hardware has a 4 core, it might be twice as fast as a dual-core.
Secondly, the speed can also be affected by the settings you use. As you learn how to rip DVD with Handbrake, you will come across a “video presets” slider. The presets offer various speed options that range from ultrafast to very slow (placebo).
The speed you choose will depend on the file size and quality. Faster presets will lower quality. Slow presets use complex algorithms that offer better results.
Additionally, the DVD ripper speed will depend on the size of the source. For instance, a 1080P file will encode for longer than 506P because it has five times more pixels.