Interest in a lower compression iso optimized for USB booting?

[BG405]

OK here goes:

Toshiba NB250 ← Single core Atom N455, 2GB RAM
ALPHA -------------------------------- 1m53s ← First try, it opened Ventoy contents, obscuring icons: 1m56s
ALPHA2 ------------------------------ 1m53s ← Same as above: 1m54s
LZ4-TESTING ----------------------- 1m11s
L4-TESTING-NO-ISOHYBRID -- 1m11s

Acer D255E ← Dual core Atom N570 @ 1.66GHz, 2GB RAM
ALPHA -------------------------------- 1m46s
ALPHA2 ------------------------------ 1m44s
LZ4-TESTING ----------------------- 1m12s ← 1m14s (to icons) when it also opened Ventoy contents (after icons)
L4-TESTING-NO-ISOHYBRID -- 1m10s ← AVG 1m09,1m11