Trading platforms handle high frequency data for prop accounts using ultra low latency infrastructure built for speed and direct market access.
They receive raw exchange feeds (like NASDAQ ITCH) through direct connections and process them in real time using optimized feed handlers.
Instead of traditional network paths, they use kernel bypass technologies such as DPDK and high performance network cards to push data directly into memory with minimal delay.
This data is used to maintain an in memory Limit Order Book (LOB), which updates instantly without depending on disk storage or databases. Many platforms also use co-location near exchange servers to reduce physical latency.
Algorithms are often pinned to dedicated CPU cores to ensure stable, uninterrupted processing.
Together, these techniques allow prop firm software platforms to process massive data streams and execute trades in microseconds. 
