Jet reports currently checks authorizations (LDAP) only on normal domain controllers and not on read only domain controllers. This makes starting the software slower on remote offices where there are only read only domain controllers active. 

Example: We currently have our main HQ in Amsterdam, but our remote office in Hong Kong is also using Jet Reports. When a colleague opens Jet Reports in Hong Kong, the software will contact (LDAP)  the Domain Controller in Amsterdam, because the Domain Controller in Hong Kong is read-only. This causes extra delays in opening the Excel software with Jet Reports active. 

(i've already created calls about this and support suggested to create a feature request for this)