Smear vs Altitude and automatic drone slowing

smear and altitude.... Am I to assume that flying higher will result in larger GSD that then results in smaller smear due to velocity component of UAS?  This is a bit compounded if the algorithm also factors in residual angular jitter on stabilization which should get slightly worse with altitude as the UAS is buffeted more by winds etc.  I read the post on light level and smear but need a bit more depth for understanding.  Thoughts?