Released last Friday for Patreon backers and due November 20th for the rest of the public, Cemu 1.22.0 packs in a significant deal of punch as it includes:
A re-working of the PowerPC and Cafe OS threading mechanism
The existing single/dual/triple-core CPU modes have been replaced by a Single-core and Multi-core mode with the latter making use of one full CPU thread while dynamically adjusting load on two other threads.
Thanks to the reworking, overhead has been reduced resulting in minor performance boosts while some titles like Super Mario 3D World that are not multi-threaded should not be as heavy on the host CPU
The PM4 Command Processor has been updated with promises of up to a 5% performance boost in games
Combined, the above changes could provide boosts of around 5% or more in the best-case scenario meaning that if there are any titles that almost run well but not quite on your machine, you should give them another go!