How? If each core is 5x faster then it's done 5x sooner. I can't think of a use case for a cheap vps where 5x faster per core cpus are not helpful.
There are many different configurations of vps available with different numbers of cores, if you are picking the vps configuration specifically to have more cores than some transcoding software uses by default to avoid configuring a thread limit for that software then you are still configuring things to the nth degree just at the objectively wrong level of abstraction.