In college, at 29 years old, Paskal put up 13-7 on 57% then 20-11.5 on 53% shooting at 21. He had a 27 PER his freshman year, and a 31.1 PER his second year. Coming into the league, his usage was super low like Kawhi his first couple years, but he was efficient with the touches he got, still shooting 50%. He didn't have a 3 point shot right away, but he also didn't take any either, and still excelled.
Luka at 20 is putting up 13-7 on 39% shooting, and turning the ball over 3 times a game. His patented shot is good for 30% on 4 attempts per game as of today. The only bright spot so far is his rebounding.
Comparing him to Siakam makes no sense.
For the sake of our new GM, I hope he turns it around, but there's no use sugar coating the situation. The 2nd best player in the draft was there at 19(Brandon Clarke), among other better options(grant williams, thybull.. ).