To answer your question - YES that is the max youll do.  It was NOT uncommon for people to have endless gpu racks minign scrypt coin. I myself had the r2x cards and about 10 of them gave me a has rate of about 5 M/h for some ridiculous power consumption of well over 1500w.

Then I bought a Zeus Thunder and that thing did 30M/H whilst consuming around 1000-1200w (I can still see this thing sitting there on the shelf - still works)

After a while, I decided to buy the L2 scrypt miners, they never came out, and got refunded in LTC - and then it mooned to 300 bucks - so I got well more back then I invested in the miner....

then I bought some L3+ scrypt miners and Iver been mining ltc/.doge with them ever since - they do 500M/H for 800watts

That shoudl answer your question about if your graphic card is good or not - as it doesn't matter if its good or not, these answers for has rate for scrypt for gpus is about 8 years ago - you caan search there as a reference point - most people here are not the old miners and cant give you this answer.  Ergo - you are asking for information NO ONE gives a shit about and hasnt since 2012.  Search for it instead in this forum.