I know exactly what you mean! I worked on a project a while back that involved creating a real-time analytics dashboard, and performance was a nightmare until we restructured how the modules communicated. Partnering with a team experienced in high-tech software development really helped us find solutions faster. Here’s a resource that explains some approaches in this area: sam-solutions.com/industries/high-tech/ . Personally, breaking tasks into smaller components and testing each one separately made a huge difference in stability and speed.