Bug: Inaccurate Sync time ETA when restarting

[wakamex]

Describe the bug
Time to sync ETA is off when restarting the indexer.

To Reproduce
Stop the indexer and restart it.

Expected behavior
Get an accurate ETA.

Screenshots

Local (please complete the following information):

• Envio version
• Node version
• pnpm version
• Docker version (if running locally)

Additional context
PR with attempted fix in #498

[JasoonS]

Thank you for reporting - we will take a look and verify this.