I completely agree with DaveR, I would add to not use Hybrid for final export and stay with Raster if possible.
Adjust your raster settings for your style so that the final output reads well. With my standard settings here is a screen shot of how your drawing exports to PDF:
The settings I used in SU are:
And in LO
With this change alone, rendering page 5 with all view ports takes about 3 seconds on my system. Rendering all view ports in the entire document takes less than 6 seconds.
Note I set the raster rendering quality to High and I still get fast results.
I imagine if you optimized your model and materials as DaveR mentioned, and worked in Medium Raster rendering mode in LO, you would probably have almost instantaneous updates to your view ports.
If you want to dive a little deeper into forgoing vector and hybrid for Raster, here is another related post:
And here is one about styles:
(Final Note: For exporting vector based line work for consultants to use as backgrounds, I make a separate Layout file that will use Vector just for that purpose.)