Performance of string + string in func DecompressFromBase64 is too bad, and strings.Builder{} or bytes.Buffer{} is better.

[llj1990]

[gtsigner]

i think here are some big problems with performance,it will cause performance problems when using long strings

[Albinzr]

Is there a fix or was it just closed?

[lazarus]

Is there a fix or was it just closed?

Fixed in #6