diff --git a/apps/twnlua/game.c b/apps/twnlua/game.c
index 4428024..5574741 100644
--- a/apps/twnlua/game.c
+++ b/apps/twnlua/game.c
@@ -44,13 +44,12 @@ static int physfs_loader(lua_State *L) {
 
 
 /* WARN! experimental and will probably be removed */
-/* it was an attempt to ease memory usage problems posed by using lua */
-/* it saved ~100MiB, but it still hogs ~500MiB for no reason on my PC */
+/* it is an attempt to ease memory usage problems posed by using lua, partially successful */
 static void *custom_alloc(void *ud, void *ptr, size_t osize, size_t nsize) {
     (void)ud;
 
     /* small allocations are placed in slots, as there's a big chance they will not need to be resized */
-    static char slots[1024][64];
+    static char slots[1024][128];
     static int16_t free_slots[1024] = { [0] = -1 };
     static size_t free_slot_count = 1024;
 
@@ -59,26 +58,26 @@ static void *custom_alloc(void *ud, void *ptr, size_t osize, size_t nsize) {
             free_slots[i] = (int16_t)i;
 
     if (nsize == 0) {
-        if (ptr && (char *)ptr >= &slots[0][0] && (char *)ptr <= &slots[1024-1][64-1])
-            free_slots[free_slot_count++] = (int16_t)(((uintptr_t)ptr - (uintptr_t)slots) / 64);
-        else
+        if (ptr && (char *)ptr >= &slots[0][0] && (char *)ptr <= &slots[1024-1][128-1])
+            free_slots[free_slot_count++] = (int16_t)(((uintptr_t)ptr - (uintptr_t)slots) / 128);
+        else if (osize)
             SDL_free(ptr);
         return NULL;
     } else {
-        if (!ptr && nsize <= 64 && free_slot_count > 0) {
+        if (!ptr && nsize <= 128 && free_slot_count > 0) {
             /* use a slot */
             return slots[free_slots[--free_slot_count]];
         }
 
-        if ((char *)ptr >= &slots[0][0] && (char *)ptr <= &slots[1024-1][64-1]) {
+        if ((char *)ptr >= &slots[0][0] && (char *)ptr <= &slots[1024-1][128-1]) {
             /* still fits */
-            if (nsize <= 64)
+            if (nsize <= 128)
                 return ptr;
 
             /* move from slot to dynamic memory */
             void *mem = SDL_malloc(nsize);
             SDL_memcpy(mem, ptr, osize);
-            free_slots[free_slot_count++] = (int16_t)(((uintptr_t)ptr - (uintptr_t)slots) / 64);
+            free_slots[free_slot_count++] = (int16_t)(((uintptr_t)ptr - (uintptr_t)slots) / 128);
             return mem;
         }