Adafruit_NeoPixel vs. FastLED

im new to this kind of pixels but i made sutch a huge progress within a week on Fastled even getting full poart driving as no matrix need for text (( const uint8_t Font5x7[] PROGMEM = { 0x00,0x00,0x00,0x00,0x00,// )) direct output and row shifting workes fabueless in parallel to the Fastled Effects so pattern of colors show up within millisecends even on nano

the only thing i got has been the setup of the port in parallel to the Fastled and the combination of the setup text i missed one pixel for 5days till i found the answer to get it back the DDRD port shift showed the pixel but not the Fastled setup