Hardware for an esports organization (CS:GO), the ideal price / quality ratio?

Question

Computers

Hello, users of the portal, I have come to you from the world of professional eSports.
As you know, the CS:GO game is, to put it mildly, not the most optimized in modern realities, which is why players have to pick up very expensive hardware, despite the not very serious requirements set by the game developer. Everything changes radically if we are talking about the level of professional athletes who are very zealous about the loss of each frame, there "drawdowns" are unacceptable, when we formed the "bootcamp" zone (training base) the following hardware configuration was chosen:
Processor core i5 9600kf
Video card gtx 1660 super gigabyte 6144mb
​​motherboard MSI z390-a pro
ram 16bg ddr4 3000Mhz HyperX
Cooling Deepcool gammax 400
B / P 700W be quiet system power 9 Plus bronze
Storage: ssd m2 on 250gb samsung 860 evo and hdd 500gb sata3 seagate barracuda
well, 4 coolers in the case
The result is the following: during overclocking, 4 out of 6 machines behave stably at absolutely identical input data, 1 computer spontaneously reboots with any overclocking (video card, processor does not matter), one regularly produces a blue screen.
In addition to the unoptimized game, the ESEA client anti-cheat is added, which loves to eat fps very much and we already have values ​​​​on the verge of unacceptable ones, stable 250fps is required in any operating modes.
So I formulate my final question: what needs to be done to get stable values? Have we configured our equipment incorrectly? maybe you need to replace something in this assembly (the processor seems to be the most logical)? Accordingly, if something needs to be changed, then the optimal price / quality is of interest, taking into account current prices and a multiplier (only 6 cars)

Answer 1

Change processors to Intel Core i7-9700F / Intel Core i9-9900KF
Vidyahi to GTX 2070 / GTX 3070
Depending on what budget.

Answer 2

The result is the following: during overclocking, 4 out of 6 machines behave stably with exactly the same input data, 1 computer spontaneously reboots during any overclocking (video card, processor does not matter), one regularly produces a blue screen.

Well, things that are so problematic - or obvious power problems (low electricity in sockets at a bootcamp is usually not new if it's a country house) - you can just turn on all computers, TVs, refrigerators, microwaves - in general, everything that you have at the bootcamp turns on during training, and measure the voltage and stability of this voltage in different outlets.
This can be done either with a smart uninterruptible power supply with logging or simply with an electronic voltmeter to look at the time.
Either this is just an obvious marriage of pieces of iron, an obvious marriage, and you need to change the components from the supplier.
The problem with electricity is solved by a high-quality stabilizer, something like the LogicPower LP-W-5000RD.
Ideally, a stabilizer for each computer, or one for two - count by watts (a normal stabilizer for a computer should cost about $ 50-80)
Of course, online uninterruptibles can also be used, but it will be 2-5 times more expensive.
And for pro-gaming machines, i5 is not very, of course, better than i7.
Again, overclocking is a bad decision for pro organizations. There should be enough nominal power without overclocking to be stable.