PureBasic evolves rapidly. A decompiler that works for v5.73 (LTS) will fail catastrophically for v6.10 because the internal string handling (OOP vs. ASCII/Unicode) and structure alignment change. To be "better," a decompiler must be version-aware.
The most significant improvement possible is the application of Function Library Identification. purebasic decompiler better
The final measure of "better" is usability. Most decompilers output a .pb file that won't compile. They forget constants (#PB_Window_SystemMenu becomes 12). They break variable scope. PureBasic evolves rapidly
A truly better decompiler:
PureBasic stores strings in a specific data section of the executable, often with length prefixes or specific encoding. purebasic decompiler better