To speed up EML to PST Conversion, you can do some actions before conversion that save the processing time, for example, save all the EML files in one folder and avoid the manual method for massive datasets. The manual method is only suitable for individuals with small amounts of data, but using an automated tool is much more appropriate for both individuals and businesses with small or large amounts of data. I personally used
OSTtoPSTAPP EML to PST Converter for converting numerous files at a time with instant results. It preserves every email detail during the conversion and provides accurate conversions. Users can save the resultant files locally on the system, which ensures full data encryption. It speeds up the conversion without any hassle.