Thanks for such a long answer where You were trying to solve my problem

)))
Anyway You gave me 3 links in Your answer. By the Proces Monitor i noticed that Your tip is right, its due to RAM problem.
I think its because the game as You said has to be told to use more RAM - but here im stuck because in Your two others links, first isn't helpfull because the option included to "memory boost" is already hitched in my sh4.exe. Second link says to patch it and i did but the problem is still the same and now i dont know what to do
Here is a PrtSC of my monitor proces. according to Monitor process there is something to change in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\USERProcessHandleQuota but i dont know if it has to be changed and how? is it nessesery?
I dont know what to do now, i patched it by LAA, memory boost is already done.
Im realy, realy thanks to You CapnScurvy, for help! Im sorry that im bothering You and taking Your time.