Problem soloing T3s? Buy a new phone

Ugh, I have to get a new phone, I tried to solo Alakazam today and the first attempt was near success, if I had made the dodge with my first Ttar I would have won. But every subsequent attempt the lag stacked so by the last attempt I was losing 1/2+1+1/2 mons with 1 charge move. I only got it to the yellow with 45 seconds left and all 6 were dead. Not to mention twice it occurred that when I max revive before entering the lobby and then go in none of the mons are revived/healed.

Experienced the same, soloing Machamp with iPhone8 was way easier than 5s. Admittedly, the one with iPhone8 had Bullet Punch/Close Combat, so an easy moveset, but it was much cleaner. I look forward to trying it against Heavy Slam, and I don't know if I have the beef to solo one with Dynamic Punch. But the new phone helps, no question.

I am lucky then, my old iphone 5s still working quite ok.
I just not updating to IOS 11 yet, IOS 10 work fine for me
Same gengar with focus blast, no problem
Edited to add SS

I know my Galaxy S5 is making my solo attempts harder but am not quite ready to upgrade to the S8... But it will be glorious when I finally succeed (OK, Machamp, come out of hiding tomorrow!)

Congrats on defeating Gengar (and getting a nice new phone!)

2 words:
Forced obsolescence.

Man, it sucks that the phone makes such a difference. I'm level 38 and have never soloed a tier 3 boss even with level 35-39 attackers. I finally had to accept that my old Galaxy Note 3 can't hack it. I can rarely fire off charge moves, so I usually spam my fast move since I rarely get more than 1 or 2 charge moves off from all six attackers combined because the sensitivity of my screen isn't very good. I swipe frantically but still eat charge moves left and right because the phone won't let me dodge. Add to that the fact that I start the raid 4-6 seconds late and end it 3-4 seconds early and there's no way it's happening.

Hopefully in two more months I can finally get a new phone.