I used 'Performance fish', 'Rocketman', and 'Performance Optimizer' as optimization modes, but even with optimization modes, I only got about 160 ticks, so I had to play for quite a long time.

I played on Blood and dust difficulty (With over 300 modes, the difficulty level doesn't mean much), and the shelves were built using Vanilla Furniture Expanded, LWM Deep Storage, and the 1.5 and 1.4 forks of JDS Simple Storage.