Your joke is worse then my joke.
Look. I think I can help you. I'm sure all of your hardware is in check. Spiking brake pedal or something can't cost you 5 seconds a lap or whatever is the margin, so let me brake it down for you. If you are left wissing on the straights like a sunday driver surely you must be running too much areo. Let me make this real simple. Default setup by automatic means like a 2 sec gap. Half bad setup is around 1 sec and good setup is still half a second down. But still this would not explain half of the problems for you. So let's try again. Are you using the full width of the track. Is your line prosperous onto the straight. Does it tighten into twisty bits. This can easily cos you another second a lap.
Lastly Afair in arcade they allow you to slide the car around a lot and make it fast. Simulation does not tolerate overdriving. Yea sure you will have to induce or catch a few slips and slides from the car, but these are only barely visible. Overdriving costs between one second and spin. Under driving from half a second to one and a half. So being smooth is not enough. This is why many of us state how connected we are with the road in this sim. U get a feeling of what's going on beneath on the road. So to rephrase it, give it some time to sink in, explore cos the depth just got a whole lot deeper, maybe ull get there to the bottom of the things.