Again I can only refer to my experiences with adapting new players to this league, so excuse my constant references to 'us/Leicester'.
I will just go through a few of our players, who have joined us, did not have an 'immediate' impact, and hopefully you'll realise that's it's likely too early to see what you want from Berge.
No more obvious player to start that with Jamie Vardy. I don't suspect he get's a lot of christmas cards from any of you lot, but as someone so wonderfully and accurately put it in another thread, he's a "Prolific twat"......And undoubtedly, with both his goalscoring record and what he brings to any side with his work-rate,pace and stamina, he's one of the best and most underrated strikers to ever play in the Premier League.
When he joined us in the Championship he was very raw. You could see that attitude/desire that every fan of other clubs who plays against him, dislikes him for. But he was extremely Lightweight, he struggled to get into the game and often looked a step behind it mentally. His touch was poor, and his pace and directness was not present at all as he didn't have the intelligence in a quick game. He got 4 goals in 26 games, and was very close to leaving the club, if it wasn't for our Pearson/Walsh at the time convincing him to stay.
Go forward to the following season, after a full pre-season and experience of what was required, he was transformed. 16 goals in 36, fired us to promotion, and he just looked so much more prepared Physically. What is interesting with him though, is that his first season in the top flight, was almost identical to that in the Championship, only 5 goals in 34 matches....But this time he was given time to adapt from the fans, because they saw what had happened when given the season to adapt from before.
Mahrez.
Joined us in January of our promotion season. Had obvious technical ability, but looked too weak Physically and was way too Lightweight. He would get brushed off the ball far too easily, and although it's an issue with the modern game, he wasn't intelligent enough to use this lack of strength to win those 'cheap' fouls that all players of a similar stature need to do. The first season in the Premier League saw those same negatives be there, but after a full season to adapt, he became everything that we saw during the season we won the league.
Since our first time back in the PL in 2014-15 until today, i've not seen any player at our ground who has the touch/control and the ability to just ghost past players that Mahrez has had since his first season at this level. Hazard was always considered the best wide player in this league during that time, which I don't agree with, Mahrez is a superior player for me.
Ndidi
Now probably the best comparison.....Why?
Signed from Genk in January (2017) for just under £20 million.
Very poor technically at the start, was not good with the ball at his feet. Physically he was just too Lightweight, he was just too skinny/weak which was an issue because he didn't have the intelligence and speed of thought to use his extra speed to his advantage. We tried him in a double pivot in a 4231, and although he got better and improved vastly over the course of his first full season, he didn't look all that special.
Then Puel loaned in Tielemans. We went from a double pivot, to Ndidi sitting on his own in front of the back 4......He was completely transformed. Since he's done nothing but improve game after game and for the last 12-18 months he's become by far the best defensive midfielder in this league. People talk about Leicester's midfield and they talk about Maddison/Tielemans, but they have nowhere near the ability of this lad. No surprise Real Madrid and PSG are showing interest. He walks into any side in Europe as their holding midfielder. No surprise when he was out for a bit earlier this season we went on a terrible run. Although a different style of player, he's at Kante's level, where I don't see any other player out there in this league or abroad, who does what he does in his position.
Some players have some strange ability to adapt to this league and become World Class within the first 30 seconds, like Kante.
Others need a good season and pre-season to adapt, if they had not been given that time, Vardy/Mahrez/Ndidi would not be the three of the best players in this league that they are today.
The highlighted parts, referring to Physicality and Lightweight, is what i've seen many on here criticize Berge for this far. So hopefully you see that it is an extremely common issue for players in this league, especially when coming from abroad.
(It's probably also evidence of the point I was making about Wilder's past transfers, and Sheffield United fans not really having much experience of foreign players adapting to the English game. No idea why some take exception to the fact when I point out that for whatever the reason may be, Wilder has only used the English market to sign players before January).