odd Performance in 128players

odd Performance in 128Players mode

  First of all,there is my PC: 13700KF+RTX4070+double Acer 16G DDR4 Ram(overdrive to 4000MHz),and system is Win11

  From the season6,when I play in the 128Players game like <128player rush >,it will appear an odd Performance:At first,my FPS is normal(about 200FPS to 220FPS average),CPU usage is normal(around 60%),GPU usage is normal(up 90%).But when I play about 10-15min,they are get lower.CPU usage about 57%,GPU usage about 70%,so my FPS get lower(170-200FPS),if I still play,they worse!It is odd that if I quit the room and join the same room again,my FPS recover to normal(200-220FPS),the GPU usage is upper 90% too.I checked my CPU's frequency and temperature when it occur,they are normal:5300MHz and around 70℃(that's common in i7 CPU),so frequency be lower led to lowFPS is impossible!FPS recover after I join again is odd too!And I know that unistall and install GraphicCard Driver again make this phenomenon disapper a little while,but it appears again when I repeat play 128players room.

 I try to solve the problem with almost every way:chage the settings of game or my windows system;change the settings to get changes from codes with Nvidia GeForce Experience;change settings in game's profiles in C Disk;try to use some apps like CPUcores......they aren't work ☹️ 

 I search in some other forum and I find that some people have this problem too,from desktop to laptop.So it must exist special promblem occur in a little players,not relate to their device's CPU or card.

Someone please help us.  🙂