Hey @SimpleStacker, I'm working full‑time on speeding up Bitcoin Core IBD, see https://github.com/bitcoin/bitcoin/pull/32043.

I'm really surprised by the 7‑day, 78 % sync you're seeing. I run multiple IBDs and reindex‑chainstates per day to hunt new bottlenecks, and even the worst finish in about 12 hours. I should get some Raspberry Pi benchmarking servers somehow.

A few of us are also working on an experimental IBD alternative called SwiftSync (https://delvingbitcoin.org/t/swiftsync-speeding-up-ibd-with-pre-generated-hints-poc/1562). The latest prototype reindex‑chainstated up to block 888888 in 29 minutes on my laptop (with profiling enabled!). Granted, it's a really powerful laptop.

My first guess is that your disk I/O is probably very slow, something that can be mitigated by keeping more data in memory with, for example, -dbcache=5000. You can also increase the batch size of writes to LevelDB with -dbbatchsize=67108864. Lastly, you can turn off script verification by setting -assumevalid=000000000000000000013e40cf3ae6464f5f99d415d6a1fb31577841103df5d8 to the hash of the block you want to re‑enable it from.

That's the size on disk - in memory it's almost 30 GiB.