Yes, others are experiencing this, it's a regular post from sellers Private and Business here, daily. It's always been slow and from time to time too slow ! You are not alone !
Are you being impacted by any late delivery marks? If so, contact eBay Customer Services explain what is happening and if there are late delivery marks for these to be looked at and hopefully removed.
If you need to,
This is the easiest and quickest way to contact eBay Customer Services, for a Call Back option.
https://www.ebay.co.uk/help/eua?id=5275&mkevt=1&mkpid
Lines open 8 a.m. - 10 p.m. on weekdays
9 a.m. - 6 p.m. on weekends.
Automated agents will be available on chat outside of the above hours.
I recommend contacting CS first thing in the morning as there's more chance of Dublin answering.
@18catsrfurryfriends