...Download SMM at https://opensimply.org/smm
Free Pascal's native memory manager uses certain memory allocation and deallocation functions for 32-bit Windows applications that cause fatal errors when reusing large amounts of memory repeatedly, and it runs in this case rather slowly.
SMM prevents such errors by using a different approach, and it is much faster on avalanche-like memory allocation requests.
Simply Memory Manager is a part of the OpenSIMPLY project: https://opensimply.org/