This is a late response. Not sure if this will help, but it's worth a try if you use windows. After starting the ME queue, start Windows Task Manager and raise the priority of the process to the highest level you can.
I would guess that the purpose of the queue (batch) mode is to allow you to work on other things while encoding takes place in the background. In order for encoding to work and not slow down other work that you are actively trying to perform, it would seem that the batch process should take a back seat to interactive work.
Thank you! I will try this and report what I find! I appreciate the response.
Sorry to bring this months old topic back up, but it's one of the few places I've seen this addressed.
I'm having a similiar problem with AME not using my nVidia card, but PPro CS5 using it correctly.
Direct Export from Premiere for a 90 minute 720x480 MPEG2 export takes 45 minutes. Queuing it up in AME takes 14+ hours. When loading eVGA's Precision Tool, I can see the GPU use ramp up when exporting from PPRo (telling me it's using the card for rendering), but when enqueuing in AME, the card is not used.
Was there every any resolution to this issue?