The more data, the slower the response

dear all…sory for my engglis bed
Now i have
On atmega 2560
14 lamp
14 switch for lamp on/off
3 switch for alarm notifikasi
1 sensor MQ2
1 sensor DTH11
1 sensor LM35
1 srnsor light

On my blynk app
14 button
7 wiged
1 notifikadi
3 read data

Now if i push button
Lamp on very long time (4 sec)

How to make it faster…

Thanks very much…
From indonesia…

hello @Nadi Nadi
Please attach full sketch , else we can’t help you