I'm working on a Mage2.1 site which has some bundle products with up to 260 child products as an option. This is making the product page load very slow as it iterates over all the options. I would expect the FPC to cache the result and make page load faster on the second load - but it does not.
It's as though the bundle product is not being cached at all. I've tried adding cacheable='true' to the blocks, but I understand all blocks are cachable unless stated otherwise. Any ideas?