Can the IBD (Initial Block Download) be made faster? Or can wait times be improved?
On first install, the Bitcoin service must verify the entire history of transactions in order to verify transactions going forward. This can take anywhere from 8 hours up to a week or more depending on your hardware and internet connection. You can continue to use your server normally during this sync. You can learn more about the Initial Block Download (IBD) in this video.
The only immediate way to improve IBD speeds will be to upgrade your hardware or Internet connection. Bitcoin v26 is slated to add a feature that will make Bitcoin available much faster. Stay tuned for that update in late 2023.