You were asked if this was a support request when you started this thread and you answered “no”, which avoided filling out the support template, which propably could have make it possible to answer your question in any way satisfactorily without dragging every detail out of you.
I have several suspicions about why your cron jobs are taking so long, but I won’t voice them since you didn’t bother to provide accurate contextual information.
So please, show the community your respect and complete your support request with the necessary information. This is because other users with the same question from this thread should also be able to be helped later. This is only possible if the contextual details are included.
Much and good luck,
ernolf