yep… but Embergen is expen$ive and I’m a broke teenager lol
I’m planning on giving my laptop an upgrade sometime though
You can do a viewport playblast to view the animation without fps dropping:
There are a lot of things going on in this scene, the voumetric smoke simulation, the poly count, too many rigid bodies… Mission Impossible. 
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That is a Blender specific problem though. VDB file sequences and cached rigid bodies can run pretty fast if the software is optimized for it.
Unfortunately, that really isn’t in the case in Blender.
Several orders of magnitude faster is possible on the same hardware, there is a ton of headroom for optimization.
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Is there a specific reason for this? Perhaps the implementation is rather new and it would require a few revisions until it gets improved.
I don’t know, from time to time a lot of areas of Blender have seen performance boosts after a few iterations, so it not odd to happen for the VDB as well.
You can bake your viewport animation for playback btw.
Orientate the camera how you want and then, in the view dropdown, select “Viewport Render Animation”.
This will render the viewport animation into a series of images in the blender temp folder.
Once completed use control+F11 to play that animation (Render drop down and “view animation” option)
I don’t know, but I would guess that these optimizations need a lot of time and effort, I can’t really imagine that this is trivial and easy to do.
Viewport display of volumes could also be a bottleneck.
To be quite honest, i am not even sure if this is worth it to invest a lot of developer time in it.