The 2020 world champion battled an engine issue in the opening five laps of the sprint on Saturday before coming through to finish as top Honda in 15th.
With no Honda rider near the points, the Japanese marque has seemingly failed to make any major progress through the field despite radically overhauling its motorcycle.
Asked about what the issues with the RC213V are in race trim, Mir said: “We have the same problems, but faster.
“The confidence with the front… it’s not that I don’t have confidence. I have confidence, but when I push more I crash.
“The confidence is there, but the limit of this front is not very far. So, you have to play with it.
“I struggled a lot this morning [on Saturday] to put a lap together because I made good sectors but I was always going wide here and there, because I struggled on the front.
“Our grip is better than last year, but not fantastic. But if you want to make the bike turn and brake hard, maybe we lost a bit in that part.
Source: Autosport