Average download speed added. Theme updated.

Bug fixes

Version 3.5 — Performance & Memory Improvements

DOWNLOAD SPEED

• Continuous read pump: data is now read from the network immediately
as it arrives, not on a timer tick. Each thread no longer waits up
to 1 second between reads — data flows at full network speed.

• Timer interval reduced from 1000 ms to 500 ms — twice as frequent
storage writes and progress updates.

• Large data bursts are written to IndexedDB in 8 MB zero-copy slices
(TypedArray.subarray), keeping write sizes uniform.

MEMORY (large files, 5 GB+)

• 16 MB backpressure limit in the read pump prevents unbounded RAM
growth on fast connections.

• 8 MB early-flush threshold: data is written to IndexedDB as soon as
8 MB accumulates, instead of waiting for the periodic timer. Peak
writer buffer stays at ~8 MB per thread (was potentially hundreds of
MB for large files).

SINGLE-THREAD DOWNLOADS

All of the above apply to forced single-thread mode (SourceForge,
mirrors without Range support). The read pump eliminates the ~1 s
read delay that was the main bottleneck in this mode.