In 2021 I invented dual mining as a way to circumwent the LHR Locks by NVIDIA. It was a huge topic at the time. Dual mining was able to overcome around ~80% of the hashlimit by first mining a currency which is hash limited but before the limit would kick in, the Mining would switch to a secondary currency which does not have a hash limit in place because it uses a different algorythm. After a given cooldown period, the card could mine the Limited Currency at 100% again without running into the hash limiter.