You should've bought chronos over nimble/armor plating, and don't do uncharged shots. you just have to charge for a split second and you get noticeably better accuracy
Temporal Divide is his worst talent but works in scrims, it increases your cooldown and shortens duration of shield (which is bad) and in casuals you can't really rely on randoms with that talent. The penalty is the only thing that sucks about it. Deja Vu is his meta talent in double tank comp, the issue with this talent is you can't rewind a high mobility champion mid air and it can save enemies if not managed well because its aoe. Unstable Fissure is actually good surprisingly. You can run it as solo tank or if you wanna point tank/play defensive but he's an off tank so it honestly depends on map and enemy comp, it doesn't have the penalty of having an aoe rewind so you can hit high mobility champs mid air. This is the talent i run if im forced to solo tank in casuals. It has 3 charges of time abilities basically (ultimate, second chance can now rewind, and setback ability) which is nice.