From post race press conference;
Q: (Joe van Burik – Autocar NL) To all three: looking back at the weekend, do you think the three tyre compounds available were too similar?
LH: It was a very easy one-stop here and the tyres were very very similar but we have already spoken to Charlie. We spoke with Charlie and we spoke about potential options for next year or even later on this year, spreading the compounds out a little bit, making it a bit more racy. It was just so difficult to overtake. I was on fresher tyres than Max. These cars, more so maybe at this track, but following is even worse than I can remember before.
Being that it was really windy, as soon as you get like four seconds behind, you start to feel – it’s a long distance, it’s like a hundred meters or something, maybe more - behind another car and you can feel the effect of the car ahead. You shouldn’t be able to feel it until you get right right up their tail but it starts affecting the car already and you start to lose the momentum as you get closer and with these tyres… I think at the time I had a harder tyre which was slower so I couldn’t catch and overtake, even though I had much much younger tyres. So the fundamentals definitely aren’t right and need to be improved. Hopefully they’ll do something more exciting later on in the year.
Q: Valtteri, do you agree?
VB: I think we knew it, coming to this race. What we saw in winter testing, there was nearly no difference between the compounds and it was the same this weekend so I think it was pretty much expected.
MV: I agree.
https://www.fia.com/news/f1-post-race-press-conference