# Performance Enum

> Specify the performance of the OCR engine in an abstract way.

- Product: Adobe PDF Library 21
- Language: .NET Framework
- Version: APDFL21.0.0PlusP1e
- HTML page: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/enum/Performance
- Version index: https://docs.datalogics.com/apdfl21/DotNetFramework/APDFL21.0.0PlusP1e/llms.txt

**Namespace:** `Datalogics::PDFL`

## Description

Specify the performance of the OCR engine in an abstract way. In Tesseract, for instance, this changes the OCREngineMode.

## Values

- `Default = 0`: Use the engine's default performance mode.
- `Faster = 1`: Favor speed over accuracy.
- `MoreAccuracy = 2`: Favor accuracy over speed.
- `BestAccuracy = 3`: Use the most accurate mode available, at the cost of speed.