Great game buttttttttt.........

I am on round 115 on Hard mode. I have 7 Rays of Doom, 2 Technological Terrors, 6 banana factories, a Sun God, and 14 Apache Helicopters. Why the is the game running so slowly?? Smh 5/5 would not recommend

Nicole Brandy about Bloons TD 5, v3.8.3