DVDs are very small. DVD-Videos use MPEG-2 format, so it is easy and fast to create them.
If you create a Blu-ray Video disc with h.264, it will take much much more time no matter what software you use.
The brand name doesn't help. You need to post more tech specs like CPU and RAM as well as your OS version.
Also without knowing the formats you use for your input files as well as the type of the disc that you create, it is next to impossible to suggest anything.
Wondershare posts spam everywhere including this forum, so obviously we recommend to avoid their software.