Tendril witch build help (i know lol)

I need help seeing what may be holding my damage back. I know it might not be long term viable, but I want to stick with my tendril/herald/orb of storms combo. It's just for fun but I'm in act 6 now and getting hit hard suddenly.
here is my poe planner link-https://poeplanner.com/AgADABYAAwAANwCzBEIF9AhYEC0RbxY4GtwcFB2qJC8nnCz4MNEybDPpNtg6lkGrREdFnUWzTFJTrlXzWVRmnmZDaoVxEXaDfBCCm4J7hWSOpo9VkOCaI6EAorOu_676tuq8ZsD10KbVudqw32rj7us47B_wpvfS-gAAAAAAAAQADwHsAExpZmVzcHJpZwAA_wAAAP__BgmPAQEAspUBFAC4iQEFAJ6KARQAOIsBEQCylAEIAAGFlQEMAAAAAAABCQJBc2VuYXRoJ3MgTWFyawAAAAAAAP__BYOJAQwAq4kBDAC1jwIgAAsAqJEBHgDpkgEFAAAAAAAAAdMCVGhvdXNhbmQgUmliYm9ucwAA_wAAAP__DBKVAQUAVIACAgADAD2AAgIAAwBxgAIBAAQApIkBAABmkAEUAN2PAQ0AaooBBgAYiwEGAL2GAQgAIYQBBQC6jQEIAAAAAAAAAPwBRHJlYWQgQmFuZAAA_wAAAANJBAEOAAsAAgwAGACnBAENAAG1jQEdAAAAAAABoQFEb2VkcmUncyBUZW51cmUAAAAAAAD__wSviwEUAKWVATUAqIkB8f_ojwEgAAAAAAAAAQ8BUHJpc213ZWF2ZQAA_wAAAP__BlOAAggAEAA7gAIFAAwAb4ACAQAfAESBAQcAn4sBHgBknAEKAAFbiwENAAAAAAAAygEAAP8AAAABJAABKwAAAAAAAAC-AQAA_wAAAAEGAQEGAAAAAAAAAL4BAAD_AAAAAAAAAAAAAMoBAAD_AAAAAnIAARYAEgABAQAAAAAAAAAGAAAA_wAAAAH0DAEMAAFTjQHSAAAAAAAAvgEAAP8AAAABcgABFQAAAAAAAAFpAktpa2F6YXJ1AAD_AAAA__8EB4EBDwCtkQEYAG2UAcT_W40BPAABtY0BFAAAAAAAAewATGlmZXNwcmlnAAD_AAAA__8GCY8BAQCylQEZALiJAQgAnooBEQA4iwERALKUAQgAAYWVAQkAAAAAAAFTAVN0b3JtY2hhcmdlcgAAXQAAAP__BdCNAQ8AAZMBFADdlAEyAHuEAR4A35QBFAAAAAAAAAAN__8BAgQOCgMMBQcICwkGAAACAAAEBAPTAAcUAAABwwEBAAAAAb8BBgAAAAEFBQoACBQAAAFeAQwUAAAB7QAOFAAAAWgBDhQAAAGAAQQUAAADBgP-AAwUAAABugEGFAAAAZsBCxQAAAEHA9YBCwEAAAHRAAYUAAABpQEBDQAAAQMA2AUAAGoCAAAxAB4AAAAAFAAfiwgAAAAAAAADAwAAAAAAAAAAAA==