I don't have much experience with replacing struts, but I did just research them as part of a 4 corner quick strut replacement I just had done.
Both Monroe and KYB claim their Quick Strut (Sensa-Trac) and GR2 are designed to ride and perform like OEM.
Now in some cases, I presume that means they will be performance. Eg for my Mercedes with AMG suspension, Monroe & KYB offer shocks in both sports and non sports variants.
But for my Ford, the same product line within both brands, is not performance, simply OEM like.
KYB mention other struts for additional performance. Monroe don't.
Now, reading different forums turns up interesting user experiences. Some say KYB GR2 are sportier than stock, some say Monroe Quick Struts are.
So I would suggest that you find out what users for your vehicle are saying prior to assuming what GR2 will do.