If you need to improve the overall performance of your GL device, please try the steps I listed in this post:
https://forum.gl-inet.com/t/my-gl-x3000-keeps-turing-off-after-about-5-minutes/
Note: the hardening is largely dependent on your usage. For me, as shown in the post, I do not use any services besides the 5G WiFi and Cellular connection.