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- Extract token decoding to avoid repeated calls in handle_semantic_tokens_response - Replace array concatenation with extend() for better performance when accumulating highlights - Cache precomputed line/character deltas in decode_tokens for efficiency - Simplify endpos calculation by avoiding unnecessary object mutation - Implement memoization for highlight group lookups via s:hl_group_cache - Remove debug logging call in apply_highlights - Fix indentation inconsistency in return statement
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This pull request improves performance by reducing the re-rendering time for a 20,000-line JSON file in kakehashi
from 3 seconds to 1.5 seconds.