iPhone battery charging question

[xAppleFanx]

I wonder if using too much electricity (ex: desktop on, 2 more iPhone charging and a smart tv on) can make the charging of my iPhone slow. These are the latest periods in hours that my iPhone takes from 1% to 100%.

8:50 pm to 10:25 pm
12:27 pm 2:03 pm

7:20 pm to 9:52 pm
6:20 pm a 9:04 pm

The last charging time the tv was on, along with the desktop

 

[anon(9602380)]

Seems normal to me. Having additional things on shouldn't change it. Still 110v going to everything.