Worked for me the solution of base64 encrypted code but its not the regular base64 online web, its base64 image decoder online web, that its not equal...
I opened the vcf file with notepad++
I copy the base64 code without the first type codes:
I opened on a base64 image decoder online web:
I found an app "simple gallery"
it has an option to lower the number of shown columns, and that will make all screenshots bigger!