Speeding up Roland SH-5 AR envelope gen.

[Herzinberg]

Hi everyone!

I've got Roland SH-5 recently.

Everything's cool except those quite slow attack of AR env. gen. (follower may be).
Is there any way to speed up its attack to the same time as its ADSR Attack?

if that's not easy (possible) I could suggest another solution here:
SH-5 has 3 envelope sources - AR, fixed env with a bit raised attack, ADSR. So may be it is easier to change the shape of that fixed env. to a near 0ms Attack?

Any help's much appreciated!