Indexing speed reduced significantly with OCR

[Zheng Lin Edwin Yeo]

Hi,

Does the indexing speed of Solr reduced significantly when we are using
Tesseract OCR to extract scanned inline images from PDF?

I found that after I implement the solution to extract those scanned images
from PDF, the indexing speed is now slower by almost more than 10 times.

I'm using Solr 6.4.2, and Tika App 1.1.4.

Regards,
Edwin