Yes — we’re talking TypeScript at scale in 2025.
The good news? With TS 5.8 and a few smart habits, you can keep strict types without crushing your IDE or CI.
💥 Why TypeScript starts to hurt:
• Deeply recursive generics that never end
• Monorepos running on one massive tsconfig.json
• “Convenient” barrel imports that pull in hundreds of types
• Type systems so clever they break your CPU before your code
🎯 What really helps (and still works in the real world):
• Splitting your project into smaller, type-isolated pieces
• Offloading build to esbuild or swc while keeping type-checking strict
• Putting boundaries on recursion and flattening import structures
• Tracking bottlenecks with diagnostic flags and trace tools
• Taking advantage of TS 5.8: faster checks, cleaner modules, better feedback
🚧 And no, flipping "isolatedModules": true won’t magically fix everything — but it might stop your editor from screaming.
🧪 TypeScript today is powerful — but power needs discipline.
Builds that take minutes? Type hints lagging behind your keystrokes? Those are fixable.
Start with insight → optimize by design → ship faster without fear.
https://blog.devgenius.io/big-types-small-bottlenecks-practical-typescript-optimisation-for-2025-projects-42cd7f820595
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