Hey Rohidas,
the wide tag title box in the beginning of portfolio tag pages is intended by design, so that the user knows what page he/she is on. If you wish, you can remove the boxes by deleting lines 43-53 in the “taxonomy-tagportfolio.php” file in the theme root folder.
I will look into the loading sequence, but I need to be clear that I cannot promise anything definitive at this point.
Sincerely,
Andrew / Satori Studio