In the scope of #8204 it's been decided to switch to the BPS_INNER_CARD config of the BPS tree in the memtx. The problem is that the config introduces payload-dependent performance regression against the original tree.

It's possible to get rid of this regression in specific cases (e. g., INSERT query). Partially it's implemented in the #10183, let's finish the job separately as it does not touch the current tree implementation.