macOS 27, which Apple will push later this year, seems poised to be a major optimization-focused update. According to past experience, macOS developer beta versions are usually accompanied by a large number of bugs and performance issues. The previous generation of official version macOS Tahoe was also criticized for lagging and performance degradation. However, a user of a 5-year-old M1 Pro MacBook Pro said that after installing the macOS 27 developer beta, the overall smoothness of the system has made a "qualitative leap."

The Reddit user "Pilingo" said in the post that although this is an early developer test version, the lag that previously appeared on macOS Tahoe has obviously disappeared. He said that the previous problems of the device with the Tahoe system were obvious interface freezes, animation frame drops, and overall slow response. Now, these problems have basically disappeared on macOS 27 (codenamed Golden Gate). In his subjective experience, applications launch faster, animations are smoother, and the entire system feels more responsive and polished.

From the perspective of hardware generations, although M1 Pro had outstanding performance when it was released, it is now considered an "old chip." However, the optimization of macOS 27 has given this MacBook Pro five years ago a "rebirth." What surprised this user even more was that the performance of Tahoe, Apple's previous stable version of the system, was not as good as that of Golden Gate, which is still in the development stage. This was also interpreted as indicating that Apple has invested a lot of energy in improving the underlying performance and system response in the past year.

This positive feedback is not unique. In the comment area, another Reddit user named "EffectiveDikon1457" also said that his MacBook Air, equipped with an M3 chip and only equipped with 8GB of unified memory and 256GB SSD, also experienced significant performance improvements after upgrading to the macOS 27 beta version. On such a machine with a relatively basic configuration, you can still feel the improvement in system fluency, which further strengthens the outside world’s impression of macOS 27’s “main optimization”.

Apple emphasized at this year's press conference that macOS 27 will have top performance optimization and system response speed as its core selling points. Judging from the current feedback from beta users, at least on some models, this promotion is not empty talk. However, the current version is still in the development stage after all. The specific performance changes and stability performance will not be concluded until more models participate in testing and subsequent version iterations.

The outside world is also paying attention to whether the system will maintain the current high fluency while taking into account the stability and compatibility under long-term use when the official version of macOS 27 is pushed to all users later this year. For users who are already dissatisfied with Tahoe's performance, macOS 27 is expected to be a "corrective" update, allowing both old and new Macs to have an experience closer to Apple's promotional caliber in daily use.

Currently, developers and ordinary users who are willing to try new things can already download and install the macOS 27 developer beta through the Apple developer website. However, considering that the beta system may still have unknown problems, you still need to back up your data before choosing to upgrade, and carefully assess the risks of installing the beta system on the main device.