League of Legends FPS problems with a gaming PC and RX5700XT GPU?

I would like to assemble a pc from

GPU: MSI Radeon RX5700XT 8gb mech oc

CPU: Amd Ryzen 5 3600

Ram: G.Skill DIMM 16 GB Ddr4-3000 Kit

Mainboard: MSI B450M PRO-VDH MAX

Power supply: Be quiet! Pure Power 11 500W power supply

And housing: Sharkoon S1000 Window, tower housing

M.2 SSD: 480 GB Corsair Force Series MP510 (B) M.2 2280 3D NAND TLC

HDD: no HDD / hard disk

I want to play League of Legends and Minecraft on this PC, but heard that a good gaming PC in League of Legends virtually goes into sleep mode and therefore sometimes even under 100 fps at least it should be like this with an rx 5700xt.

Is that correct? To the people who have a good pc and play lol.

I really just want to be able to play lol and Minecraft fluently, nothing more except maybe valorant.

With such a setup please don't worry about lags. And if it should lie because of this strange calmness then you can also set it so that it is not stuck. Don't worry

Do you know if the cooler that is supplied with the Ryzen 5 3600 has to be applied with the cooler with thermal paste and if so is the thermal paste included?

It should all be on the description. Sometimes a film is already applied to the cpu and sometimes you have to buy it. But if that is delivered together then I think she is either there or already above