performance – Is there any local scoping that can be done here to reduce the memory footprint?

Sorry for being obsessed with microoptimizations, but I have this.

static int Q(const struct dirent **const First, const struct dirent **const Second) {
    const char *const FirstName = (*First)->d_name, *const SecondName = (*Second)->d_name, *const Name() = {FirstName, SecondName};
    const unsigned short FirstLen = (unsigned short)strlen(FirstName), SecondLen = (unsigned short)strlen(SecondName), Len() = {FirstLen, SecondLen};
    char File(SavesLen+Len(FirstLen > SecondLen)+2), *CurrPtr = memcpy(File, S, SavesLen)+SavesLen;
    *CurrPtr++ = '/';
    time_t Time(2);
    for (unsigned char I = 0; I < 2; I++) {
        memcpy(CurrPtr, Name(I), Len(I));
        struct stat Stat;
        if (stat(File, &Stat)){
            return 0;
        Time(I) = Stat.st_atimespec.tv_sec;
    return Time(1)-(*Time);

This goes in scandir or qsort to sort an array of struct dirent *s by access date. S is the directory path of the directory whose files are being sorted, and SavesLen is strlen(S). Both are global variables defined and declared and initialized elsewhere. Is there a way to take advantage of local scopes to delete some of the memory earlier? Are there other improvements to be made? Thanks ahead of time.