here is a few comparaison of staking reward depending of the periodicity of the claim

If you ask every 3 months 0.45% x 90 day , which is 40%,  at the end of the year it will be 40% 4 time cumulative growth which is 284%.

If you ask every 3 days, 0.45% x 3, which is 1.35% , at the end of the year it will be 1.35% 122 time cumulative growth wich is 413%.

So I guess there is something I dont get as the maximal annual reward is 300%

Is the 300% capped or I m wrong ?