I struggled to read Spaceship Earth this past summer. Are his lectures better?
I would humbly advocate pushing through regardless, as I found the material to be profound; I'd also suggest "Synergetics" [0], which employs a similar style, but is much more STEM-oriented than the "Spaceship Earth" quasi-narrative. But having said that, I don't blame anyone who finds the style too tedious; I have a similar experience every time I try to read 18th/19th-century political economy (Smith + Marx).
[0] https://www.brainpickings.org/2013/03/08/buckminster-fuller-...
I love how in the beginning of Synergetics he spends pages building an argument to justify the statement "1 + 1 = 4." He was insistent that we reformulate our most basic notions about value and equivalence.