### Godot version

8449592d92eaeef990f5502b419d491ee3eeb7a6

### System information

Windows 11

### Issue description

Zooming in the script editor on an empty script freezes the entire editor for a few seconds, but if the file is large then it freezes for 4-5 seconds (which is unacceptable). Looks like a recent regression.

### Steps to reproduce

Just zoom in/out on the large script file.

### Minimal reproduction project

N/A
ERR_FAIL_COND(p_face_index < 0);
	ERR_FAIL_COND(p_face_index >= 0x7FFF);
	FontAdvanced *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND(!fd);
	MutexLock lock(fd->mutex);
	if (fd->face_index != p_face_index) {
		fd->face_index = p_face_index;
		_font_clear_cache(fd);
	}
}
int64_t TextServerAdvanced::_font_get_face_index(const RID &p_font_rid) const {
	FontAdvanced *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, 0);
	MutexLock lock(fd->mutex);
	return fd->face_index;
}
int64_t TextServerAdvanced::_font_get_face_count(const RID &p_font_rid) const {
	FontAdvanced *fd = font_owner.get_or_null(p_font_rid);
	ERR_FAIL_COND_V(!fd, 0);
	MutexLock lock(fd->mutex);
	int face_count = 0;
	if (fd->data_ptr && (fd->data_size > 0)) {
		
#ifdef MODULE_FREETYPE_ENABLED
		int error = 0;