While network access is usually quite a bit slower than stand-alone access, bear in mind that the vast majority of Adagio users work via server/network access. If it's slow to the point that you don't want to work with it something is wrong, you should not have to resort back.

As Andrew pointed out, AV (or Internet Security) software is usually the culprit and if in use, the accounting program and data paths should be "exceptions" to the background/memory resident/on access/real-time/whatever your product calls it scanning of the AV component. Sometimes the Firewall component can be the issue as well.

However it could be a host of other things and you may need to work with an Adagio Consultant in tandem with your Network Administrator/Consultant to resolve the issue.

Good luck, Pete