MicroSoft ocr not providing quality text as it earlier does

you can see in old image ocr working fine providing quality text, but after few days its quality degraded.

First i was getting exception (Microsoft Internal Error) when using Microsoft OCR,
After that i googled it and installed SharePoint software with modi feature enabled.
Now not getting any exception but quality is still very bad, needs solution for this.
axis_stmt_AG.pdf (1.5 MB)

I am using the trial version of Ui Path Studio.
Task i was doing is Reading Scanned PDF using Microsoft OCR and writing it in txt file.