Reconstruction Tiling RAM amount?

I read thru this wiki https://communities.bentley.com/products/3d_imaging_and_point_cloud_software/w/wiki/47956/tiling-tips and it gave some help. I have a 3d model I'm trying to process and it's 1,500 photos with 30 Gigapixels. When I attempted to do the reconstruction it recommended to do tiling so I chose "Adaptive Tiling". It gives me an option to put a target RAM amount. My basic specs are an Intel i9 3.2Ghz with 10 cores, i have 64GB RAM and a RTX 3080 TI. I was thinking I should put more than 16GB if it would speed things up but it seems to recommend 16GB. So this is my first model and so I did the default. Is there any speed enhancement possibility in increasing the RAM commitment? I would not be using this computer for anything else during the processing so no other apps would be competing for CPU/RAM.

The one thing I'm noticing as it is currently processing is that the CPU is being pegged at 100% most of the time, RAM for ContextCapture is sitting around 4GB so it's not even using the 16 GB I entered and GPU has gone up to 60% but it probably is hovering around 5-20%. My gut is telling me more RAM won't help but I don't know much quite yet. 

Please help, I'm clearly a newbie and would appreciate any documentation/help anyone can provide.