This message was posted on behalf of Intel Corporation
First of all, about the optimizer is a trim feature that comes already integrated in your operating system (Windows* 7, Windows* 8.1 & Windows® 10), basically the feature is disabled in Intel® Solid-State Drive Toolbox as it is no longer needed. You may want to take a look at this link.
About the performance of your disc, checking on the motherboard specs, we noticed that the board comes with 2 x M.2 slots (Socket 3, M key, type 2242/2260/2280 SATA & PCIe x4/x2/x1 SSD support), our suggestion is to verify weather the BIOS is set or mapped properly to run at PCIe interface and not SATA, also to verify that is running at x4 speed.
We always recommend to update the BIOS in the motherboard, which you already did, so that part is covered.
Basically, we suggest to contact Gigabyte* to verify these settings and to properly setup the M.2 slot.
We will be waiting for your response.