Complex sentence: It is uncertain to what extent Edward took a personal interest in dispensing justice, as the written records are limited, but he appears to have involved himself to some degree during the first part of his reign, and to have increasingly intervened personally after 1322.
Split into simpler sentences: It is uncertain to what extent Edward took a personal interest in dispensing justice, as the written records are limited. He appears, however, to have involved himself to some degree during the first part of his reign, and to have increasingly intervened personally after 1322.