New version is getting worse!

[lostreal]

With 3.5 stable release these three games that i have mentioned hereunder running smoothly.

Kirby's Adventure Wii
Mario Kart Wii
New Super Mario Bros. Wii

But with the new (4.0.1 - 4.0.2) and unstable version the same games running choppy. I did not understand what the problem is, the new version is getting worse.

System Specification;

Processor : 3rd generation Intel® Core™ i5-3210M Processor with Intel® Turbo Boost Technology 2.0
Clock speed : 2.50 / 3.10 Turbo
3rd level cache : 3MB
Memory : 4GB DDR3 RAM (1,600 MHz)
Graphics : Intel® HD Graphics 4000

[Zee530]

Improvements to the code increases accuracy but may make the game slower, older versions may run faster but have more bugs and are more unstable.

[JMC47]

This is a pointless thread, and can only cause problems.

Worse != Slower.