app and custom board issue

[recrenawer]

Hello, I am new to the forum. I am a programmer and lately I am working on a mobile app with micropython and picoweb. The issue is that I want to develop a pcb with a series of functionalities for the arcade world, but I am encountering a series of problems that you can still solve for me. I am working with an esp32 development board. The issue is that when I'm debugging the app it takes a long time to load. Checking especially takes time when you have to load the css and js libraries. Is this a power problem in the microcontroller? Is there any other more powerful microcontroller in which the loading of the app is more fluid?

Thanks!