4GB patch) https://ntcore.com/?page_id=371 .. its relevant and used for HoI2 (just an example). But good that BA already can in more than 4gb)
For about "256 palitra".. I mean, maybe there's an opportunity to tie more pleasant for the eyes colorful palette? Like there https://howardsmithdmd.wordpress.com/2014/12/04/development-realisation-assignme...
and of course, patience and health to you for fighting lags!