Here are some tips, which allow to maximize the barcode reading speed:

• Recognize only necessary barcode types (see ReaderSettings.ScanBarcodeTypes property). This can increase barcode reading speed up to several times.
• Use the detection of barcode regions using AI if you have large images or a large number of barcodes on an image. This can increase barcode reading speed up to several times.
• Recognize barcodes only in necessary directions (see ReaderSettings.ScanDirection property). This can increase barcode reading speed up to 20%.
• Find and use optimal threshold values for color images with barcodes (see ReaderSettings.Threshold property), do not use the authomatic threshold mode (see ReaderSettings.ThresholdMode property) if this is possible. This can increase barcode reading speed up to 10%.
• Set the ReaderSettings.ExpectedBarcodes property if number of barcodes is known.
• Use correct (appropriate) value of ReaderSettings.MatrixBarcodeMaxCellSize property. This can increase the reading speed of two-dimensional barcode.
• Use correct (appropriate) value of ReaderSettings.MatrixBarcodeMinCellSize property. This can increase the reading speed of two-dimensional barcode.
• Set the ReaderSettings.SearchMirrored2DBarcodes property to False if you do not have images with mirrored 2D barcodes.
• Disable ReaderSettings.RemovePeas feature if image with barcodes has good quality. This can increase barcode reading speed up to 5%.
• Do not use ScanDirection.Angle45and135 if you do not need to recognize low and wide bars barcodes rotated to 30-60 degrees. This can increase barcode reading speed up to 30%.
• Disable ReaderSettings.SearchDistortedDataMatrixBarcodes feature if your DataMatrix barcodes do not have dimensional distortion. This can increase DataMatrix barcode reading speed up to 50%.
• Decrease value of ReaderSettings.DataMatrixLPatternMaxErasures property if your DataMatrix barcodes does not have erasures. This can increase DataMatrix barcode reading speed up to 50%.
• Set the ReaderSettings.SearchDataMatrixRectangularExtensionBarcodes property to False if you do not need to recognize DataMatrix DMRE barcodes.
• Disable ReaderSettings.SearchDistortedQRBarcodes feature if your QR barcodes do not have dimensional distortion. This can increase QR barcode reading speed.
• Use ReaderSettings.ImageScaleFactor property to downscale image if barcodes on image is large (single bar or cell is greater than 6 pixels). This can increase barcode reading speed up to several times.