IMO the speed to use the page is OK and thx for adding the user management option. Looks good ;-)
Over the past few years, Delphi's network solutions have become more and more, such as IW+ CG components, you can achieve the bootstrap effect, of course, there are more convenient unigui components in design, but I prefer to leave the IDE's pure script mode. This makes it easier to maintain. For debugging, I think the chrome F12 debugging mode is already very good.