The PSA is an impressive but cumbersome space, a huge building likened by curator Qui Zhijie to London’s Tate Modern. The PSA may have similar hardware to that legendary institution but it doesn’t have the software — the staffing, budgets, etc — to match. Nevertheless, it has accomplished an incredible amount, hosting two biennales, visits from the Warhol museum and the Centre Pompidou, and, in 2014, a memorable Cai Guo-qiang solo show.