`reth download --archive`: extraction phase extremely slow on archive snapshots

### Describe the bug Running `reth download --archive --resumable --datadir /data/reth` on Ethereum mainnet, the extraction phase is extremely slow — approximately 1 archive every 10 minutes out of 2990 total archives. The download phase completed fine but extraction has been running for 2+ days with no signs of completing soon. ### Steps to reproduce 1. Fresh Ubuntu 24 install on Intel NUC 12 (16 cores, 32GB RAM, 4TB NVMe) 2. Install Reth 2.0.0 from official binary 3. Run `reth download --archive --resumable --datadir /data/reth` 4. Wait for download phase to complete (~1.5 TB compressed, took ~2 days over 5G tethering) 5. Observe extraction phase: - Progress: ~1 archive every 10 minutes out of 2990 total - CPU: ~13% total usage, no single core above 15% - Disk `%util`: <1% (measured with `iostat -x 1`) ### Node logs ```text 026-04-23T12:52:31.479702Z INFO Extracting remaining archives archives=2706/2990 downloaded=1858.94 GB 2026-04-23T12:52:34.480348Z INFO Extracting remaining archives archives=2706/2990 downloaded=1858.96 GB 2026-04-23T12:52:37.480343Z INFO Extracting remaining archives archives=2706/2990 downloaded=1858.98 GB 2026-04-23T12:52:40.480093Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.00 GB 2026-04-23T12:52:43.480611Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.02 GB 2026-04-23T12:52:46.480360Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.04 GB 2026-04-23T12:52:49.479945Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.06 GB 2026-04-23T12:52:52.479674Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.09 GB 2026-04-23T12:52:55.480388Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.12 GB 2026-04-23T12:52:58.480358Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.14 GB 2026-04-23T12:53:01.480216Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.17 GB 2026-04-23T12:53:04.479726Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.19 GB 2026-04-23T12:53:07.480240Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.21 GB 2026-04-23T12:53:10.480238Z INFO Extracting remaining archives archives=2706/2990 downloaded=1859.23 GB ``` ### Platform(s) _No response_ ### Container Type Not running in a container ### What version/commit are you on? 2.0.0 ### What database version are you on? 2 ### Which chain / network are you on? mainnet ### What type of node are you running? Archive (default) ### What prune config do you use, if any? _No response_ ### If you've built Reth from source, provide the full command you used _No response_ ### Code of Conduct - [x] I agree to follow the Code of Conduct