x86 to x64 code optimization

[Crx76]

a greeting to all,:smile:
I have a small problem with a vba project that I realized a little time ago.
the project was compiled on a machine with operating system win xp pro x86 and autocad 2010 x86, then , for ram needs they had to pass to win xp pro x64 and consequently to autocad 2010 x64 after this change the project became slow mooolto in the execution of the various operations type if first put us 1 sec to popular of the listbox now puts us from 20 to 30 sec.

according to you is normal
How can you do to optimize the speed of execution?

thanks to all for possible answers :smile:

 

[rpor66]

This is a good problem, unfortunately vba behaves differently with x64 systems.
I happen to have to " slow down" userform openings to prevent the program from working, so try to verify that there is a certain sequence in operations.
It's just an idea, try.

bye

 

[Crx76]

Thanks for the straight, I've been re-checking the routines a bit and it seems to me that until now there is nothing strange as a sequence of execution ... I keep checking .