Hey there sasirus, it's not **that** slow but it is slow and it's a pretty common nutrient issue. Basically during flower you want npk ratios that are heavier on the pk than the n. Here I can see you have a light Nitrogen toxicity. You can see that from the very dark green leafs and the burnt tips. The problem comes from all the products that you are using. Especially additives and micro nutrients like lemon kick , green sensation and sugar royal might have N inside them... The solution is to make an inventory of the ingredients of the products and look for NPK ratios usually displayed like three numbers with the first number being how much N is inside. Then you should remove most of the N containing products . That's because you want to fix the ratio of N to PK. Once you decide which ones to remove try doing a water water feed water water feed water water feed schedule to try and get rid of the N build up in the soil (or try flushing by watering until run off then watering 20% more one time). If you remove the end and get rid of the build up the plant should start flowering hard. Hope this helps ! π