Well, sure... they completely got rid of ghost stories many years ago. OK, sorry to joke...but it's true. There is no feature called 'ghost story' any longer.
The Trace and Reference feature can give you two kinds of reference drawings - either a viewpoint... which will use exactly the same layers as your active view... or a view ... which has its own layers, model view options, etc.
When you use a viewpoint... then T&R is identical to the old ghost story... and it is inconceivable that anyone would notice any delays.
If you use a view, then AC has to generate a completely different view...with all the associated settings... and depending on the complexity of the model and the speed of your machine, it will be slower. Personally, on the machine listed in my signature, I've never had any delays with any kind of T&R for residential sized projects.
Can you describe what your active view and your trace reference are when you are having issues? Is the reference a View vs viewpoint? If you can get away with a viewpoint, it will be much faster.
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB
