Your PC not running optimally may be as a result of many factors but in this video we'll be focusing on the System architecture.
When an x64 based processor PC is running a 32-bit operating system there's bound to be lapses. But running a 32-bit operating system on an 32-bit based processor makes way for smoother performance.
It's best to use the a 4-bit operating system on an x64 based processor than a 32-bit operating system on it.