Vindicta ult scope in drops frames

[FewBee]

Hello! I've had this issue where when I use vindicta and scope in using ult, my frames drop in half and its unplayable, but once I scope out it goes back to normal. This has consistently happened throughout many games, it doesn't happen in the training room, it only does it on the proper map. Theres seems to be nothing that triggers it or makes it better, it just happens

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[kt46]

This happens to me too. Also happens when Sinclair copies this ult.