Helius's new API solution is indeed powerful. In comparison, if you're still using the old approach of getSignaturesForAddress plus getTransaction in the Solana ecosystem, there are many issues: latency is 2-10 times higher, code is redundant and cumbersome, not to mention server-side sorting, searching, and pagination requirements that are simply not elegantly handled.

Switching to getTransactionForAddress is a different story. One API call handles all needs, performance is directly maximized, and the amount of code can be halved. Especially when dealing with large transaction histories, the difference becomes obvious. Infrastructure optimization is often overlooked, but its impact on development experience and application performance is very real.